19783485

素因数分解:

$3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3209}}^1$

素因数の和:3357

約数の個数: 24

約数和(自身を含む): 34552440

約数和(自身を除く): 14768955

約数列:

[1, 3, 5, 9, 15, 45, 137, 411, 685, 1233, 2055, 3209, 6165, 9627, 16045, 28881, 48135, 144405, 439633, 1318899, 2198165, 3956697, 6594495, 19783485]

約数ペア:

[(1, 19783485), (3, 6594495), (5, 3956697), (9, 2198165), (15, 1318899), (45, 439633), (137, 144405), (411, 48135), (685, 28881), (1233, 16045), (2055, 9627), (3209, 6165)]