21994570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1901}}^1$

素因数の和:2010

約数の個数: 32

約数和(自身を含む): 43137360

約数和(自身を除く): 21142790

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 1901, 2314, 3802, 5785, 9505, 11570, 19010, 24713, 49426, 123565, 169189, 247130, 338378, 845945, 1691890, 2199457, 4398914, 10997285, 21994570]

約数ペア:

[(1, 21994570), (2, 10997285), (5, 4398914), (10, 2199457), (13, 1691890), (26, 845945), (65, 338378), (89, 247130), (130, 169189), (178, 123565), (445, 49426), (890, 24713), (1157, 19010), (1901, 11570), (2314, 9505), (3802, 5785)]