221854787

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{19081}}^1$

素因数の和:19250

約数の個数: 16

約数和(自身を含む): 278444544

約数和(自身を除く): 56589757

約数列:

[1, 7, 11, 77, 151, 1057, 1661, 11627, 19081, 133567, 209891, 1469237, 2881231, 20168617, 31693541, 221854787]

約数ペア:

[(1, 221854787), (7, 31693541), (11, 20168617), (77, 2881231), (151, 1469237), (1057, 209891), (1661, 133567), (11627, 19081)]