Q: What is the sum of all factors of the number 21,638 excluding 21,638?
A: 11,962
The factors of the number 21,638 are: 1, 2, 31, 62, 349, 698, 10819, 21638.
If you add them up, you will get the total of 21,649. Now subtract 21,638 to get 11,962