20945556

素因数分解:

$2^2\times 3^2\times {\mathrm{581821}}^1$

素因数の和:581831

約数の個数: 18

約数和(自身を含む): 52945802

約数和(自身を除く): 32000246

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 581821, 1163642, 1745463, 2327284, 3490926, 5236389, 6981852, 10472778, 20945556]

約数ペア:

[(1, 20945556), (2, 10472778), (3, 6981852), (4, 5236389), (6, 3490926), (9, 2327284), (12, 1745463), (18, 1163642), (36, 581821)]