81887781

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{6163}}^1$

素因数の和:6312

約数の個数: 16

約数和(自身を含む): 112825856

約数和(自身を除く): 30938075

約数列:

[1, 3, 43, 103, 129, 309, 4429, 6163, 13287, 18489, 265009, 634789, 795027, 1904367, 27295927, 81887781]

約数ペア:

[(1, 81887781), (3, 27295927), (43, 1904367), (103, 795027), (129, 634789), (309, 265009), (4429, 18489), (6163, 13287)]