Q: What is the sum of all factors of the number 2,907 excluding 2,907?
A: 1,773
The factors of the number 2,907 are: 1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907.
If you add them up, you will get the total of 2,908. Now subtract 2,907 to get 1,773