Q: What is the sum of all factors of the number 81,668,307 excluding 81,668,307?

 A: 42,778,669

Why is 42,778,669 the sum of all factors of 81,668,307, excluding 81,668,307?

The factors of the number 81,668,307 are: 1, 3, 7, 21, 3888967, 11666901, 27222769, 81668307.

If you add them up, you will get the total of 81,668,349. Now subtract 81,668,307 to get 42,778,669


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