20584557

素因数分解:

$3^3\times 7^2\times {\mathrm{15559}}^1$

素因数の和:15582

約数の個数: 24

約数和(自身を含む): 35476800

約数和(自身を除く): 14892243

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15559, 46677, 108913, 140031, 326739, 420093, 762391, 980217, 2287173, 2940651, 6861519, 20584557]

約数ペア:

[(1, 20584557), (3, 6861519), (7, 2940651), (9, 2287173), (21, 980217), (27, 762391), (49, 420093), (63, 326739), (147, 140031), (189, 108913), (441, 46677), (1323, 15559)]