20782287

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{647}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 31135104

約数和(自身を除く): 10352817

約数列:

[1, 3, 9, 43, 83, 129, 249, 387, 647, 747, 1941, 3569, 5823, 10707, 27821, 32121, 53701, 83463, 161103, 250389, 483309, 2309143, 6927429, 20782287]

約数ペア:

[(1, 20782287), (3, 6927429), (9, 2309143), (43, 483309), (83, 250389), (129, 161103), (249, 83463), (387, 53701), (647, 32121), (747, 27821), (1941, 10707), (3569, 5823)]