Q: What is the sum of all factors of the number 15,243,345 excluding 15,243,345?

A: 13,690,287

Why is 13,690,287 the sum of all factors of 15,243,345, excluding 15,243,345?

The factors of the number 15,243,345 are: 1, 3, 5, 9, 13, 15, 39, 45, 65, 71, 117, 195, 213, 355, 367, 585, 639, 923, 1065, 1101, 1835, 2769, 3195, 3303, 4615, 4771, 5505, 8307, 13845, 14313, 16515, 23855, 26057, 41535, 42939, 71565, 78171, 130285, 214695, 234513, 338741, 390855, 1016223, 1172565, 1693705, 3048669, 5081115, 15243345.

If you add them up, you will get the total of 15,243,358. Now subtract 15,243,345 to get 13,690,287