Q: What is the sum of all factors of the number 3,825 excluding 3,825?
A: 3,429
The factors of the number 3,825 are: 1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825.
If you add them up, you will get the total of 3,828. Now subtract 3,825 to get 3,429