Q: What is the sum of all factors of the number 157,209 excluding 157,209?
A: 77,991
The factors of the number 157,209 are: 1, 3, 13, 29, 39, 87, 139, 377, 417, 1131, 1807, 4031, 5421, 12093, 52403, 157209.
If you add them up, you will get the total of 157,286. Now subtract 157,209 to get 77,991