Q: What is the sum of all factors of the number 3,405,623 excluding 3,405,623?
A: 261,985
The factors of the number 3,405,623 are: 1, 13, 261971, 3405623.
If you add them up, you will get the total of 3,405,884. Now subtract 3,405,623 to get 261,985