211621571

素因数分解:

$7^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{1481}}^1$

素因数の和:1774

約数の個数: 16

約数和(自身を含む): 245419200

約数和(自身を除く): 33797629

約数列:

[1, 7, 137, 149, 959, 1043, 1481, 10367, 20413, 142891, 202897, 220669, 1420279, 1544683, 30231653, 211621571]

約数ペア:

[(1, 211621571), (7, 30231653), (137, 1544683), (149, 1420279), (959, 220669), (1043, 202897), (1481, 142891), (10367, 20413)]