18738621

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{21031}}^1$

素因数の和:21054

約数の個数: 20

約数和(自身を含む): 30538464

約数和(自身を除く): 11799843

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 21031, 63093, 189279, 231341, 567837, 694023, 1703511, 2082069, 6246207, 18738621]

約数ペア:

[(1, 18738621), (3, 6246207), (9, 2082069), (11, 1703511), (27, 694023), (33, 567837), (81, 231341), (99, 189279), (297, 63093), (891, 21031)]