20714905

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 25344000

約数和(自身を除く): 4629095

約数列:

[1, 5, 109, 191, 199, 545, 955, 995, 20819, 21691, 38009, 104095, 108455, 190045, 4142981, 20714905]

約数ペア:

[(1, 20714905), (5, 4142981), (109, 190045), (191, 108455), (199, 104095), (545, 38009), (955, 21691), (995, 20819)]