20799987

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{2213}}^1$

素因数の和:2470

約数の個数: 16

約数和(自身を含む): 30004128

約数和(自身を除く): 9204141

約数列:

[1, 3, 13, 39, 241, 723, 2213, 3133, 6639, 9399, 28769, 86307, 533333, 1599999, 6933329, 20799987]

約数ペア:

[(1, 20799987), (3, 6933329), (13, 1599999), (39, 533333), (241, 86307), (723, 28769), (2213, 9399), (3133, 6639)]