Q: What is the sum of all factors of the number 9,906 including 9,906?
A: 21,504
The factors of the number 9,906 are: 1, 2, 3, 6, 13, 26, 39, 78, 127, 254, 381, 762, 1651, 3302, 4953, 9906.
If you add them up, you will get the total of 21,504.