Q: What is the sum of all factors of the number 40,209 excluding 40,209?
A: 17,583
The factors of the number 40,209 are: 1, 3, 13, 39, 1031, 3093, 13403, 40209.
If you add them up, you will get the total of 40,226. Now subtract 40,209 to get 17,583