18193257

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{887}}^1$

素因数の和:989

約数の個数: 24

約数和(自身を含む): 27428544

約数和(自身を除く): 9235287

約数列:

[1, 3, 9, 43, 53, 129, 159, 387, 477, 887, 2279, 2661, 6837, 7983, 20511, 38141, 47011, 114423, 141033, 343269, 423099, 2021473, 6064419, 18193257]

約数ペア:

[(1, 18193257), (3, 6064419), (9, 2021473), (43, 423099), (53, 343269), (129, 141033), (159, 114423), (387, 47011), (477, 38141), (887, 20511), (2279, 7983), (2661, 6837)]