Q: What is the sum of all factors of the number 1,664 excluding 1,664?
A: 1,906
The factors of the number 1,664 are: 1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664.
If you add them up, you will get the total of 1,665. Now subtract 1,664 to get 1,906