156904321

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{19889}}^1$

素因数の和:19933

約数の個数: 16

約数和(自身を含む): 190944000

約数和(自身を除く): 34039679

約数列:

[1, 7, 23, 49, 161, 343, 1127, 7889, 19889, 139223, 457447, 974561, 3202129, 6821927, 22414903, 156904321]

約数ペア:

[(1, 156904321), (7, 22414903), (23, 6821927), (49, 3202129), (161, 974561), (343, 457447), (1127, 139223), (7889, 19889)]