Q: What is the sum of all factors of the number 2,745 excluding 2,745?
A: 2,091
The factors of the number 2,745 are: 1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745.
If you add them up, you will get the total of 2,747. Now subtract 2,745 to get 2,091