Q: What is the sum of all factors of the number 420,553,021 excluding 420,553,021?

 A: 89,327,939

Why is 89,327,939 the sum of all factors of 420,553,021, excluding 420,553,021?

The factors of the number 420,553,021 are: 1, 7, 17, 119, 569, 3983, 6211, 9673, 43477, 67711, 105587, 739109, 3534059, 24738413, 60079003, 420553021.

If you add them up, you will get the total of 420,553,110. Now subtract 420,553,021 to get 89,327,939


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