21904012

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{2683}}^1$

素因数の和:2857

約数の個数: 24

約数和(自身を含む): 41559056

約数和(自身を除く): 19655044

約数列:

[1, 2, 4, 13, 26, 52, 157, 314, 628, 2041, 2683, 4082, 5366, 8164, 10732, 34879, 69758, 139516, 421231, 842462, 1684924, 5476003, 10952006, 21904012]

約数ペア:

[(1, 21904012), (2, 10952006), (4, 5476003), (13, 1684924), (26, 842462), (52, 421231), (157, 139516), (314, 69758), (628, 34879), (2041, 10732), (2683, 8164), (4082, 5366)]