Q: What is the sum of all factors of the number 20,428,317 excluding 20,428,317?

 A: 15,890,147

Why is 15,890,147 the sum of all factors of 20,428,317, excluding 20,428,317?

The factors of the number 20,428,317 are: 1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 24943, 74829, 174601, 224487, 324259, 523803, 972777, 1571409, 2269813, 2918331, 6809439, 20428317.

If you add them up, you will get the total of 20,428,332. Now subtract 20,428,317 to get 15,890,147


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