18425457

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1013}}^1$

素因数の和:1109

約数の個数: 24

約数和(自身を含む): 27840384

約数和(自身を除く): 9414927

約数列:

[1, 3, 9, 43, 47, 129, 141, 387, 423, 1013, 2021, 3039, 6063, 9117, 18189, 43559, 47611, 130677, 142833, 392031, 428499, 2047273, 6141819, 18425457]

約数ペア:

[(1, 18425457), (3, 6141819), (9, 2047273), (43, 428499), (47, 392031), (129, 142833), (141, 130677), (387, 47611), (423, 43559), (1013, 18189), (2021, 9117), (3039, 6063)]