20722787

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{233}}^1$

素因数の和:434

約数の個数: 16

約数和(自身を含む): 22763520

約数和(自身を除く): 2040733

約数列:

[1, 19, 31, 151, 233, 589, 2869, 4427, 4681, 7223, 35183, 88939, 137237, 668477, 1090673, 20722787]

約数ペア:

[(1, 20722787), (19, 1090673), (31, 668477), (151, 137237), (233, 88939), (589, 35183), (2869, 7223), (4427, 4681)]