21002524

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2683}}^1$

素因数の和:2809

約数の個数: 24

約数和(自身を含む): 39079040

約数和(自身を除く): 18076516

約数列:

[1, 2, 4, 19, 38, 76, 103, 206, 412, 1957, 2683, 3914, 5366, 7828, 10732, 50977, 101954, 203908, 276349, 552698, 1105396, 5250631, 10501262, 21002524]

約数ペア:

[(1, 21002524), (2, 10501262), (4, 5250631), (19, 1105396), (38, 552698), (76, 276349), (103, 203908), (206, 101954), (412, 50977), (1957, 10732), (2683, 7828), (3914, 5366)]