71590421

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{457}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 87716160

約数和(自身を除く): 16125739

約数列:

[1, 7, 23, 49, 139, 161, 457, 973, 1127, 3197, 3199, 6811, 10511, 22379, 22393, 63523, 73577, 156653, 444661, 515039, 1461029, 3112627, 10227203, 71590421]

約数ペア:

[(1, 71590421), (7, 10227203), (23, 3112627), (49, 1461029), (139, 515039), (161, 444661), (457, 156653), (973, 73577), (1127, 63523), (3197, 22393), (3199, 22379), (6811, 10511)]