20028069

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{191}}^2$

素因数の和:449

約数の個数: 18

約数和(自身を含む): 29558438

約数和(自身を除く): 9530369

約数列:

[1, 3, 9, 61, 183, 191, 549, 573, 1719, 11651, 34953, 36481, 104859, 109443, 328329, 2225341, 6676023, 20028069]

約数ペア:

[(1, 20028069), (3, 6676023), (9, 2225341), (61, 328329), (183, 109443), (191, 104859), (549, 36481), (573, 34953), (1719, 11651)]