Q: What is the sum of all factors of the number 25,500,015 excluding 25,500,015?

A: 20,847,825

Why is 20,847,825 the sum of all factors of 25,500,015, excluding 25,500,015?

The factors of the number 25,500,015 are: 1, 3, 5, 9, 15, 27, 45, 79, 81, 135, 237, 395, 405, 711, 797, 1185, 2133, 2391, 3555, 3985, 6399, 7173, 10665, 11955, 21519, 31995, 35865, 62963, 64557, 107595, 188889, 314815, 322785, 566667, 944445, 1700001, 2833335, 5100003, 8500005, 25500015.

If you add them up, you will get the total of 25,500,035. Now subtract 25,500,015 to get 20,847,825