28380165

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{172001}}^1$

素因数の和:172020

約数の個数: 16

約数和(自身を含む): 49536576

約数和(自身を除く): 21156411

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 172001, 516003, 860005, 1892011, 2580015, 5676033, 9460055, 28380165]

約数ペア:

[(1, 28380165), (3, 9460055), (5, 5676033), (11, 2580015), (15, 1892011), (33, 860005), (55, 516003), (165, 172001)]