Q: What is the sum of all factors of the number 256,562,019 excluding 256,562,019?

A: 179,021,981

Why is 179,021,981 the sum of all factors of 256,562,019, excluding 256,562,019?

The factors of the number 256,562,019 are: 1, 3, 7, 9, 21, 27, 63, 189, 409, 1227, 2863, 3319, 3681, 8589, 9957, 11043, 23233, 25767, 29871, 69699, 77301, 89613, 209097, 627291, 1357471, 4072413, 9502297, 12217239, 28506891, 36651717, 85520673, 256562019.

If you add them up, you will get the total of 256,562,198. Now subtract 256,562,019 to get 179,021,981