18438133

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 21565440

約数和(自身を除く): 3127307

約数列:

[1, 7, 103, 107, 239, 721, 749, 1673, 11021, 24617, 25573, 77147, 172319, 179011, 2634019, 18438133]

約数ペア:

[(1, 18438133), (7, 2634019), (103, 179011), (107, 172319), (239, 77147), (721, 25573), (749, 24617), (1673, 11021)]