Q: What is the sum of all factors of the number 21,268 excluding 21,268?
A: 18,912
The factors of the number 21,268 are: 1, 2, 4, 13, 26, 52, 409, 818, 1636, 5317, 10634, 21268.
If you add them up, you will get the total of 21,286. Now subtract 21,268 to get 18,912