Q: What is the sum of all factors of the number 9,405 including 9,405?
A: 18,720
The factors of the number 9,405 are: 1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 209, 285, 495, 627, 855, 1045, 1881, 3135, 9405.
If you add them up, you will get the total of 18,720.