Q: What is the sum of all factors of the number 19,904 including 19,904?
A: 39,624
The factors of the number 19,904 are: 1, 2, 4, 8, 16, 32, 64, 311, 622, 1244, 2488, 4976, 9952, 19904.
If you add them up, you will get the total of 39,624.