20693421

素因数分解:

$3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1063}}^1$

素因数の和:1182

約数の個数: 32

約数和(自身を含む): 35409920

約数和(自身を除く): 14716499

約数列:

[1, 3, 7, 9, 21, 27, 63, 103, 189, 309, 721, 927, 1063, 2163, 2781, 3189, 6489, 7441, 9567, 19467, 22323, 28701, 66969, 109489, 200907, 328467, 766423, 985401, 2299269, 2956203, 6897807, 20693421]

約数ペア:

[(1, 20693421), (3, 6897807), (7, 2956203), (9, 2299269), (21, 985401), (27, 766423), (63, 328467), (103, 200907), (189, 109489), (309, 66969), (721, 28701), (927, 22323), (1063, 19467), (2163, 9567), (2781, 7441), (3189, 6489)]