Q: What is the sum of all factors of the number 81,921 excluding 81,921?
A: 47,103
The factors of the number 81,921 are: 1, 3, 7, 21, 47, 83, 141, 249, 329, 581, 987, 1743, 3901, 11703, 27307, 81921.
If you add them up, you will get the total of 81,968. Now subtract 81,921 to get 47,103