18945485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{7109}}^1$

素因数の和:7168

約数の個数: 16

約数和(自身を含む): 25084080

約数和(自身を除く): 6138595

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 7109, 35545, 92417, 291469, 462085, 1457345, 3789097, 18945485]

約数ペア:

[(1, 18945485), (5, 3789097), (13, 1457345), (41, 462085), (65, 291469), (205, 92417), (533, 35545), (2665, 7109)]