81501259

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{10331}}^1$

素因数の和:10375

約数の個数: 16

約数和(自身を含む): 99187200

約数和(自身を除く): 17685941

約数列:

[1, 7, 23, 49, 161, 343, 1127, 7889, 10331, 72317, 237613, 506219, 1663291, 3543533, 11643037, 81501259]

約数ペア:

[(1, 81501259), (7, 11643037), (23, 3543533), (49, 1663291), (161, 506219), (343, 237613), (1127, 72317), (7889, 10331)]