Q: What is the sum of all factors of the number 12,420,621 excluding 12,420,621?
A: 7,442,739
The factors of the number 12,420,621 are: 1, 3, 9, 23, 27, 59, 69, 81, 113, 177, 207, 339, 531, 621, 1017, 1357, 1593, 1863, 2599, 3051, 4071, 4779, 6667, 7797, 9153, 12213, 20001, 23391, 36639, 60003, 70173, 109917, 153341, 180009, 210519, 460023, 540027, 1380069, 4140207, 12420621.
If you add them up, you will get the total of 12,420,628. Now subtract 12,420,621 to get 7,442,739