81276579

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{2039}}^1$

素因数の和:2191

約数の個数: 24

約数和(自身を含む): 121355520

約数和(自身を除く): 40078941

約数列:

[1, 3, 9, 43, 103, 129, 309, 387, 927, 2039, 4429, 6117, 13287, 18351, 39861, 87677, 210017, 263031, 630051, 789093, 1890153, 9030731, 27092193, 81276579]

約数ペア:

[(1, 81276579), (3, 27092193), (9, 9030731), (43, 1890153), (103, 789093), (129, 630051), (309, 263031), (387, 210017), (927, 87677), (2039, 39861), (4429, 18351), (6117, 13287)]