Q: What is the sum of all factors of the number 20,904 including 20,904?
A: 57,120
The factors of the number 20,904 are: 1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 67, 78, 104, 134, 156, 201, 268, 312, 402, 536, 804, 871, 1608, 1742, 2613, 3484, 5226, 6968, 10452, 20904.
If you add them up, you will get the total of 57,120.