18983209

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 22194432

約数和(自身を除く): 3211223

約数列:

[1, 7, 103, 113, 233, 721, 791, 1631, 11639, 23999, 26329, 81473, 167993, 184303, 2711887, 18983209]

約数ペア:

[(1, 18983209), (7, 2711887), (103, 184303), (113, 167993), (233, 81473), (721, 26329), (791, 23999), (1631, 11639)]