Problem 57288. Sum the unitary divisors of a number

Created by ChrisR

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<div style = "text-align: start; line-height: 20.4333px; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: rgb(0, 0, 0); white-space: normal; "><div style="block-size: 114px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 407px 57px; transform-origin: 407px 57px; vertical-align: baseline; "><div style="block-size: 63px; font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 31.5px; text-align: left; transform-origin: 384px 31.5px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 49.7917px 8px; transform-origin: 49.7917px 8px; unicode-bidi: normal; ">Cody Problems <a target='_blank' href = "https://www.mathworks.com/matlabcentral/cody/problems/1933">1933</a><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 15.5583px 8px; transform-origin: 15.5583px 8px; unicode-bidi: normal; "> and <a target='_blank' href = "https://www.mathworks.com/matlabcentral/cody/problems/46898">46898</a><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 31.5083px 8px; transform-origin: 31.5083px 8px; unicode-bidi: normal; "> deal with <img src="data:image/png;base64,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" alt="sigma(n)" style="width: 30.5px; height: 18.5px;" width="30.5" height="18.5"><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 168.025px 8px; transform-origin: 168.025px 8px; unicode-bidi: normal; ">, the sum of divisors function. This problem deals with <img src="data:image/png;base64,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" alt="sigma*(n)" style="width: 35.5px; height: 19.5px;" width="35.5" height="19.5"><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 38.4917px 8px; transform-origin: 38.4917px 8px; unicode-bidi: normal; ">, the sum of unitary divisors functions. Unitary divisors are defined in <a target='_blank' href = "https://www.mathworks.com/matlabcentral/cody/problems/56738-list-unitary-divisors-of-a-number">Cody Problem 56738</a><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 142.342px 8px; transform-origin: 142.342px 8px; unicode-bidi: normal; ">, which asks for a list of the unitary divisors of a number, and they appear in <a target='_blank' href = "https://www.mathworks.com/matlabcentral/cody/problems/56743">Cody Problem 56743</a><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 77px 8px; transform-origin: 77px 8px; unicode-bidi: normal; ">, which asks for a count. </div><div style="block-size: 42px; font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 21px; text-align: left; transform-origin: 384px 21px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 355.742px 8px; transform-origin: 355.742px 8px; unicode-bidi: normal; ">Write a function to sum the unitary divisors of a number. For example, the unitary divisors of 18 are 1, 2, 9, and 18; therefore, the sum is 30.</div></div></div>

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Problem 57288. Sum the unitary divisors of a number

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Problem 57288. Sum the unitary divisors of a number

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