18777927

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{919}}^1$

素因数の和:1075

約数の個数: 24

約数和(自身を含む): 29366400

約数和(自身を除く): 10588473

約数列:

[1, 3, 7, 21, 49, 139, 147, 417, 919, 973, 2757, 2919, 6433, 6811, 19299, 20433, 45031, 127741, 135093, 383223, 894187, 2682561, 6259309, 18777927]

約数ペア:

[(1, 18777927), (3, 6259309), (7, 2682561), (21, 894187), (49, 383223), (139, 135093), (147, 127741), (417, 45031), (919, 20433), (973, 19299), (2757, 6811), (2919, 6433)]