20790549

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13669}}^1$

素因数の和:13701

約数の個数: 18

約数和(自身を含む): 32520930

約数和(自身を除く): 11730381

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13669, 41007, 123021, 177697, 533091, 1599273, 2310061, 6930183, 20790549]

約数ペア:

[(1, 20790549), (3, 6930183), (9, 2310061), (13, 1599273), (39, 533091), (117, 177697), (169, 123021), (507, 41007), (1521, 13669)]