18019953

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2777}}^1$

素因数の和:2893

約数の個数: 24

約数和(自身を含む): 30046848

約数和(自身を除く): 12026895

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 2777, 6489, 8331, 19439, 24993, 58317, 174951, 286031, 858093, 2002217, 2574279, 6006651, 18019953]

約数ペア:

[(1, 18019953), (3, 6006651), (7, 2574279), (9, 2002217), (21, 858093), (63, 286031), (103, 174951), (309, 58317), (721, 24993), (927, 19439), (2163, 8331), (2777, 6489)]