Q: What is the sum of all factors of the number 1,881 excluding 1,881?
A: 1,239
The factors of the number 1,881 are: 1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881.
If you add them up, you will get the total of 1,882. Now subtract 1,881 to get 1,239