20927763

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{443}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 31515120

約数和(自身を除く): 10587357

約数列:

[1, 3, 9, 29, 87, 181, 261, 443, 543, 1329, 1629, 3987, 5249, 12847, 15747, 38541, 47241, 80183, 115623, 240549, 721647, 2325307, 6975921, 20927763]

約数ペア:

[(1, 20927763), (3, 6975921), (9, 2325307), (29, 721647), (87, 240549), (181, 115623), (261, 80183), (443, 47241), (543, 38541), (1329, 15747), (1629, 12847), (3987, 5249)]