Q: What is the sum of all factors of the number 2,691 excluding 2,691?
A: 1,677
The factors of the number 2,691 are: 1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691.
If you add them up, you will get the total of 2,692. Now subtract 2,691 to get 1,677