21329757

素因数分解:

$3^3\times {\mathrm{739}}^1\times {\mathrm{1069}}^1$

素因数の和:1817

約数の個数: 16

約数和(自身を含む): 31672000

約数和(自身を除く): 10342243

約数列:

[1, 3, 9, 27, 739, 1069, 2217, 3207, 6651, 9621, 19953, 28863, 789991, 2369973, 7109919, 21329757]

約数ペア:

[(1, 21329757), (3, 7109919), (9, 2369973), (27, 789991), (739, 28863), (1069, 19953), (2217, 9621), (3207, 6651)]