20289321

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9127}}^1$

素因数の和:9165

約数の個数: 24

約数和(自身を含む): 33225920

約数和(自身を除く): 12936599

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 9127, 27381, 82143, 118651, 173413, 355953, 520239, 1067859, 1560717, 2254369, 6763107, 20289321]

約数ペア:

[(1, 20289321), (3, 6763107), (9, 2254369), (13, 1560717), (19, 1067859), (39, 520239), (57, 355953), (117, 173413), (171, 118651), (247, 82143), (741, 27381), (2223, 9127)]