21000547648

素因数分解:

$2^6\times {\mathrm{617}}^1\times {\mathrm{531821}}^1$

素因数の和:532450

約数の個数: 28

約数和(自身を含む): 41740581492

約数和(自身を除く): 20740033844

約数列:

[1, 2, 4, 8, 16, 32, 64, 617, 1234, 2468, 4936, 9872, 19744, 39488, 531821, 1063642, 2127284, 4254568, 8509136, 17018272, 34036544, 328133557, 656267114, 1312534228, 2625068456, 5250136912, 10500273824, 21000547648]

約数ペア:

[(1, 21000547648), (2, 10500273824), (4, 5250136912), (8, 2625068456), (16, 1312534228), (32, 656267114), (64, 328133557), (617, 34036544), (1234, 17018272), (2468, 8509136), (4936, 4254568), (9872, 2127284), (19744, 1063642), (39488, 531821)]