18964978

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{2141}}^1$

素因数の和:2289

約数の個数: 16

約数和(自身を含む): 29405376

約数和(自身を除く): 10440398

約数列:

[1, 2, 43, 86, 103, 206, 2141, 4282, 4429, 8858, 92063, 184126, 220523, 441046, 9482489, 18964978]

約数ペア:

[(1, 18964978), (2, 9482489), (43, 441046), (86, 220523), (103, 184126), (206, 92063), (2141, 8858), (4282, 4429)]