Q: What is the sum of all factors of the number 131,409 excluding 131,409?
A: 70,831
The factors of the number 131,409 are: 1, 3, 9, 27, 31, 93, 157, 279, 471, 837, 1413, 4239, 4867, 14601, 43803, 131409.
If you add them up, you will get the total of 131,479. Now subtract 131,409 to get 70,831