Q: What is the sum of all factors of the number 11,820 excluding 11,820?
A: 21,444
The factors of the number 11,820 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 197, 394, 591, 788, 985, 1182, 1970, 2364, 2955, 3940, 5910, 11820.
If you add them up, you will get the total of 11,841. Now subtract 11,820 to get 21,444