Q: What is the sum of all factors of the number 20,418 excluding 20,418?
A: 21,918
The factors of the number 20,418 are: 1, 2, 3, 6, 41, 82, 83, 123, 166, 246, 249, 498, 3403, 6806, 10209, 20418.
If you add them up, you will get the total of 20,439. Now subtract 20,418 to get 21,918