18893493

素因数分解:

$3^7\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 29047680

約数和(自身を除く): 10154187

約数列:

[1, 3, 9, 27, 53, 81, 159, 163, 243, 477, 489, 729, 1431, 1467, 2187, 4293, 4401, 8639, 12879, 13203, 25917, 38637, 39609, 77751, 115911, 118827, 233253, 356481, 699759, 2099277, 6297831, 18893493]

約数ペア:

[(1, 18893493), (3, 6297831), (9, 2099277), (27, 699759), (53, 356481), (81, 233253), (159, 118827), (163, 115911), (243, 77751), (477, 39609), (489, 38637), (729, 25917), (1431, 13203), (1467, 12879), (2187, 8639), (4293, 4401)]