18687069

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{443}}^1$

素因数の和:601

約数の個数: 24

約数和(自身を含む): 27936480

約数和(自身を除く): 9249411

約数列:

[1, 3, 9, 43, 109, 129, 327, 387, 443, 981, 1329, 3987, 4687, 14061, 19049, 42183, 48287, 57147, 144861, 171441, 434583, 2076341, 6229023, 18687069]

約数ペア:

[(1, 18687069), (3, 6229023), (9, 2076341), (43, 434583), (109, 171441), (129, 144861), (327, 57147), (387, 48287), (443, 42183), (981, 19049), (1329, 14061), (3987, 4687)]