18700055

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{7907}}^1$

素因数の和:7966

約数の個数: 16

約数和(自身を含む): 25052544

約数和(自身を除く): 6352489

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 7907, 39535, 86977, 340001, 434885, 1700005, 3740011, 18700055]

約数ペア:

[(1, 18700055), (5, 3740011), (11, 1700005), (43, 434885), (55, 340001), (215, 86977), (473, 39535), (2365, 7907)]