18587997

素因数分解:

$3^2\times {\mathrm{43}}^2\times {\mathrm{1117}}^1$

素因数の和:1209

約数の個数: 18

約数和(自身を含む): 27512862

約数和(自身を除く): 8924865

約数列:

[1, 3, 9, 43, 129, 387, 1117, 1849, 3351, 5547, 10053, 16641, 48031, 144093, 432279, 2065333, 6195999, 18587997]

約数ペア:

[(1, 18587997), (3, 6195999), (9, 2065333), (43, 432279), (129, 144093), (387, 48031), (1117, 16641), (1849, 10053), (3351, 5547)]