19851165

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10259}}^1$

素因数の和:10313

約数の個数: 24

約数和(自身を含む): 35212320

約数和(自身を除く): 15361155

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10259, 30777, 51295, 92331, 153885, 441137, 461655, 1323411, 2205685, 3970233, 6617055, 19851165]

約数ペア:

[(1, 19851165), (3, 6617055), (5, 3970233), (9, 2205685), (15, 1323411), (43, 461655), (45, 441137), (129, 153885), (215, 92331), (387, 51295), (645, 30777), (1935, 10259)]