18657729

素因数分解:

$3^3\times {\mathrm{103}}^1\times {\mathrm{6709}}^1$

素因数の和:6821

約数の個数: 16

約数和(自身を含む): 27913600

約数和(自身を除く): 9255871

約数列:

[1, 3, 9, 27, 103, 309, 927, 2781, 6709, 20127, 60381, 181143, 691027, 2073081, 6219243, 18657729]

約数ペア:

[(1, 18657729), (3, 6219243), (9, 2073081), (27, 691027), (103, 181143), (309, 60381), (927, 20127), (2781, 6709)]