Q: What is the sum of all factors of the number 157,171,521 excluding 157,171,521?

 A: 71,364,735

Why is 71,364,735 the sum of all factors of 157,171,521, excluding 157,171,521?

The factors of the number 157,171,521 are: 1, 3, 13, 39, 151, 169, 453, 507, 1963, 2053, 5889, 6159, 25519, 26689, 76557, 80067, 310003, 346957, 930009, 1040871, 4030039, 12090117, 52390507, 157171521.

If you add them up, you will get the total of 157,171,592. Now subtract 157,171,521 to get 71,364,735


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