20487995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{8663}}^1$

素因数の和:8722

約数の個数: 16

約数和(自身を含む): 27447552

約数和(自身を除く): 6959557

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 8663, 43315, 95293, 372509, 476465, 1862545, 4097599, 20487995]

約数ペア:

[(1, 20487995), (5, 4097599), (11, 1862545), (43, 476465), (55, 372509), (215, 95293), (473, 43315), (2365, 8663)]