Q: What is the sum of all factors of the number 21,195 including 21,195?
A: 37,920
The factors of the number 21,195 are: 1, 3, 5, 9, 15, 27, 45, 135, 157, 471, 785, 1413, 2355, 4239, 7065, 21195.
If you add them up, you will get the total of 37,920.