20257089

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{1697}}^1$

素因数の和:1896

約数の個数: 16

約数和(自身を含む): 28363392

約数和(自身を除く): 8106303

約数列:

[1, 3, 23, 69, 173, 519, 1697, 3979, 5091, 11937, 39031, 117093, 293581, 880743, 6752363, 20257089]

約数ペア:

[(1, 20257089), (3, 6752363), (23, 880743), (69, 293581), (173, 117093), (519, 39031), (1697, 11937), (3979, 5091)]