20809822

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{85991}}^1$

素因数の和:86015

約数の個数: 12

約数和(自身を含む): 34310808

約数和(自身を除く): 13500986

約数列:

[1, 2, 11, 22, 121, 242, 85991, 171982, 945901, 1891802, 10404911, 20809822]

約数ペア:

[(1, 20809822), (2, 10404911), (11, 1891802), (22, 945901), (121, 171982), (242, 85991)]