81217389

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{19379}}^1$

素因数の和:19520

約数の個数: 16

約数和(自身を含む): 119070720

約数和(自身を除く): 37853331

約数列:

[1, 3, 11, 33, 127, 381, 1397, 4191, 19379, 58137, 213169, 639507, 2461133, 7383399, 27072463, 81217389]

約数ペア:

[(1, 81217389), (3, 27072463), (11, 7383399), (33, 2461133), (127, 639507), (381, 213169), (1397, 58137), (4191, 19379)]