Q: What is the sum of all factors of the number 138,509 excluding 138,509?
A: 23,539
The factors of the number 138,509 are: 1, 7, 47, 329, 421, 2947, 19787, 138509.
If you add them up, you will get the total of 138,532. Now subtract 138,509 to get 23,539