18271216

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{26557}}^1$

素因数の和:26608

約数の個数: 20

約数和(自身を含む): 36225112

約数和(自身を除く): 17953896

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 26557, 53114, 106228, 212456, 424912, 1141951, 2283902, 4567804, 9135608, 18271216]

約数ペア:

[(1, 18271216), (2, 9135608), (4, 4567804), (8, 2283902), (16, 1141951), (43, 424912), (86, 212456), (172, 106228), (344, 53114), (688, 26557)]