Q: What is the sum of all factors of the number 21,255 including 21,255?
A: 36,960
The factors of the number 21,255 are: 1, 3, 5, 13, 15, 39, 65, 109, 195, 327, 545, 1417, 1635, 4251, 7085, 21255.
If you add them up, you will get the total of 36,960.