20381889

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{32507}}^1$

素因数の和:32540

約数の個数: 16

約数和(自身を含む): 31207680

約数和(自身を除く): 10825791

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 32507, 97521, 357577, 617633, 1072731, 1852899, 6793963, 20381889]

約数ペア:

[(1, 20381889), (3, 6793963), (11, 1852899), (19, 1072731), (33, 617633), (57, 357577), (209, 97521), (627, 32507)]