20187069

素因数分解:

$3^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{1543}}^1$

素因数の和:1649

約数の個数: 24

約数和(自身を含む): 31682880

約数和(自身を除く): 11495811

約数列:

[1, 3, 7, 21, 49, 89, 147, 267, 623, 1543, 1869, 4361, 4629, 10801, 13083, 32403, 75607, 137327, 226821, 411981, 961289, 2883867, 6729023, 20187069]

約数ペア:

[(1, 20187069), (3, 6729023), (7, 2883867), (21, 961289), (49, 411981), (89, 226821), (147, 137327), (267, 75607), (623, 32403), (1543, 13083), (1869, 10801), (4361, 4629)]