21297736

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{156601}}^1$

素因数の和:156624

約数の個数: 16

約数和(自身を含む): 42282540

約数和(自身を除く): 20984804

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 156601, 313202, 626404, 1252808, 2662217, 5324434, 10648868, 21297736]

約数ペア:

[(1, 21297736), (2, 10648868), (4, 5324434), (8, 2662217), (17, 1252808), (34, 626404), (68, 313202), (136, 156601)]