20091965

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{827}}^1$

素因数の和:988

約数の個数: 16

約数和(自身を含む): 24919488

約数和(自身を除く): 4827523

約数列:

[1, 5, 43, 113, 215, 565, 827, 4135, 4859, 24295, 35561, 93451, 177805, 467255, 4018393, 20091965]

約数ペア:

[(1, 20091965), (5, 4018393), (43, 467255), (113, 177805), (215, 93451), (565, 35561), (827, 24295), (4135, 4859)]