Q: What is the sum of all factors of the number 31,421,439 excluding 31,421,439?

A: 22,724,609

Why is 22,724,609 the sum of all factors of 31,421,439, excluding 31,421,439?

The factors of the number 31,421,439 are: 1, 3, 7, 9, 21, 27, 63, 81, 151, 189, 367, 453, 567, 1057, 1101, 1359, 2569, 3171, 3303, 4077, 7707, 9513, 9909, 12231, 23121, 28539, 29727, 55417, 69363, 85617, 166251, 208089, 387919, 498753, 1163757, 1496259, 3491271, 4488777, 10473813, 31421439.

If you add them up, you will get the total of 31,421,461. Now subtract 31,421,439 to get 22,724,609