81379543

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{443}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 99612288

約数和(自身を除く): 18232745

約数列:

[1, 7, 23, 49, 161, 163, 443, 1127, 1141, 3101, 3749, 7987, 10189, 21707, 26243, 71323, 72209, 183701, 499261, 505463, 1660807, 3538241, 11625649, 81379543]

約数ペア:

[(1, 81379543), (7, 11625649), (23, 3538241), (49, 1660807), (161, 505463), (163, 499261), (443, 183701), (1127, 72209), (1141, 71323), (3101, 26243), (3749, 21707), (7987, 10189)]