18147157

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 21196800

約数和(自身を除く): 3049643

約数列:

[1, 7, 127, 137, 149, 889, 959, 1043, 17399, 18923, 20413, 121793, 132461, 142891, 2592451, 18147157]

約数ペア:

[(1, 18147157), (7, 2592451), (127, 142891), (137, 132461), (149, 121793), (889, 20413), (959, 18923), (1043, 17399)]