81508749

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{63629}}^1$

素因数の和:63700

約数の個数: 16

約数和(自身を含む): 126241920

約数和(自身を除く): 44733171

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 63629, 190887, 445403, 1336209, 3881369, 11644107, 27169583, 81508749]

約数ペア:

[(1, 81508749), (3, 27169583), (7, 11644107), (21, 3881369), (61, 1336209), (183, 445403), (427, 190887), (1281, 63629)]