Q: What is the sum of all factors of the number 21,880 excluding 21,880?
A: 27,440
The factors of the number 21,880 are: 1, 2, 4, 5, 8, 10, 20, 40, 547, 1094, 2188, 2735, 4376, 5470, 10940, 21880.
If you add them up, you will get the total of 21,907. Now subtract 21,880 to get 27,440