20203205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{3433}}^1$

素因数の和:3556

約数の個数: 16

約数和(自身を含む): 26702784

約数和(自身を除く): 6499579

約数列:

[1, 5, 11, 55, 107, 535, 1177, 3433, 5885, 17165, 37763, 188815, 367331, 1836655, 4040641, 20203205]

約数ペア:

[(1, 20203205), (5, 4040641), (11, 1836655), (55, 367331), (107, 188815), (535, 37763), (1177, 17165), (3433, 5885)]