21915548

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{223}}^1\times {\mathrm{311}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 39137280

約数和(自身を除く): 17221732

約数列:

[1, 2, 4, 79, 158, 223, 311, 316, 446, 622, 892, 1244, 17617, 24569, 35234, 49138, 69353, 70468, 98276, 138706, 277412, 5478887, 10957774, 21915548]

約数ペア:

[(1, 21915548), (2, 10957774), (4, 5478887), (79, 277412), (158, 138706), (223, 98276), (311, 70468), (316, 69353), (446, 49138), (622, 35234), (892, 24569), (1244, 17617)]