Q: What is the sum of all factors of the number 21,637 excluding 21,637?
A: 5,435
The factors of the number 21,637 are: 1, 7, 11, 77, 281, 1967, 3091, 21637.
If you add them up, you will get the total of 21,642. Now subtract 21,637 to get 5,435