21013480

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4649}}^1$

素因数の和:4773

約数の個数: 32

約数和(自身を含む): 47709000

約数和(自身を除く): 26695520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 4649, 9298, 18596, 23245, 37192, 46490, 92980, 185960, 525337, 1050674, 2101348, 2626685, 4202696, 5253370, 10506740, 21013480]

約数ペア:

[(1, 21013480), (2, 10506740), (4, 5253370), (5, 4202696), (8, 2626685), (10, 2101348), (20, 1050674), (40, 525337), (113, 185960), (226, 92980), (452, 46490), (565, 37192), (904, 23245), (1130, 18596), (2260, 9298), (4520, 4649)]