18672087

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3433}}^1$

素因数の和:3487

約数の個数: 24

約数和(自身を含む): 29752176

約数和(自身を除く): 11080089

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 3433, 5439, 10299, 24031, 72093, 127021, 168217, 381063, 504651, 889147, 2667441, 6224029, 18672087]

約数ペア:

[(1, 18672087), (3, 6224029), (7, 2667441), (21, 889147), (37, 504651), (49, 381063), (111, 168217), (147, 127021), (259, 72093), (777, 24031), (1813, 10299), (3433, 5439)]