Q: What is the sum of all factors of the number 21,147 including 21,147?
A: 34,560
The factors of the number 21,147 are: 1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 1007, 1113, 3021, 7049, 21147.
If you add them up, you will get the total of 34,560.