18142389

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{149}}^1\times {\mathrm{163}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 26863200

約数和(自身を除く): 8720811

約数列:

[1, 3, 9, 83, 149, 163, 249, 447, 489, 747, 1341, 1467, 12367, 13529, 24287, 37101, 40587, 72861, 111303, 121761, 218583, 2015821, 6047463, 18142389]

約数ペア:

[(1, 18142389), (3, 6047463), (9, 2015821), (83, 218583), (149, 121761), (163, 111303), (249, 72861), (447, 40587), (489, 37101), (747, 24287), (1341, 13529), (1467, 12367)]