171938221

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{111143}}^1$

素因数の和:111180

約数の個数: 16

約数和(自身を含む): 224066304

約数和(自身を除く): 52128083

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 111143, 778001, 1444859, 1889431, 10114013, 13226017, 24562603, 171938221]

約数ペア:

[(1, 171938221), (7, 24562603), (13, 13226017), (17, 10114013), (91, 1889431), (119, 1444859), (221, 778001), (1547, 111143)]