21164445

素因数分解:

$3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3433}}^1$

素因数の和:3581

約数の個数: 24

約数和(自身を含む): 36963576

約数和(自身を除く): 15799131

約数列:

[1, 3, 5, 9, 15, 45, 137, 411, 685, 1233, 2055, 3433, 6165, 10299, 17165, 30897, 51495, 154485, 470321, 1410963, 2351605, 4232889, 7054815, 21164445]

約数ペア:

[(1, 21164445), (3, 7054815), (5, 4232889), (9, 2351605), (15, 1410963), (45, 470321), (137, 154485), (411, 51495), (685, 30897), (1233, 17165), (2055, 10299), (3433, 6165)]