18125919

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6691}}^1$

素因数の和:6747

約数の個数: 24

約数和(自身を含む): 30622592

約数和(自身を除く): 12496673

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 6691, 20073, 46837, 60219, 140511, 287713, 421533, 863139, 2013991, 2589417, 6041973, 18125919]

約数ペア:

[(1, 18125919), (3, 6041973), (7, 2589417), (9, 2013991), (21, 863139), (43, 421533), (63, 287713), (129, 140511), (301, 60219), (387, 46837), (903, 20073), (2709, 6691)]