156923221

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{4001}}^1$

素因数の和:4452

約数の個数: 16

約数和(自身を含む): 193632768

約数和(自身を除く): 36709547

約数列:

[1, 7, 13, 91, 431, 3017, 4001, 5603, 28007, 39221, 52013, 364091, 1724431, 12071017, 22417603, 156923221]

約数ペア:

[(1, 156923221), (7, 22417603), (13, 12071017), (91, 1724431), (431, 364091), (3017, 52013), (4001, 39221), (5603, 28007)]