156721015918

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{217065119}}^1$

素因数の和:217065159

約数の個数: 12

約数和(自身を含む): 248105432160

約数和(自身を除く): 91384416242

約数列:

[1, 2, 19, 38, 361, 722, 217065119, 434130238, 4124237261, 8248474522, 78360507959, 156721015918]

約数ペア:

[(1, 156721015918), (2, 78360507959), (19, 8248474522), (38, 4124237261), (361, 434130238), (722, 217065119)]