18077157

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6673}}^1$

素因数の和:6729

約数の個数: 24

約数和(自身を含む): 30540224

約数和(自身を除く): 12463067

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 6673, 20019, 46711, 60057, 140133, 286939, 420399, 860817, 2008573, 2582451, 6025719, 18077157]

約数ペア:

[(1, 18077157), (3, 6025719), (7, 2582451), (9, 2008573), (21, 860817), (43, 420399), (63, 286939), (129, 140133), (301, 60057), (387, 46711), (903, 20019), (2709, 6673)]