Q: What is the sum of all factors of the number 20,907 excluding 20,907?
A: 10,917
The factors of the number 20,907 are: 1, 3, 9, 23, 69, 101, 207, 303, 909, 2323, 6969, 20907.
If you add them up, you will get the total of 20,917. Now subtract 20,907 to get 10,917