20647682

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{2081}}^1$

素因数の和:2146

約数の個数: 24

約数和(自身を含む): 34890156

約数和(自身を除く): 14242474

約数列:

[1, 2, 11, 22, 41, 82, 121, 242, 451, 902, 2081, 4162, 4961, 9922, 22891, 45782, 85321, 170642, 251801, 503602, 938531, 1877062, 10323841, 20647682]

約数ペア:

[(1, 20647682), (2, 10323841), (11, 1877062), (22, 938531), (41, 503602), (82, 251801), (121, 170642), (242, 85321), (451, 45782), (902, 22891), (2081, 9922), (4162, 4961)]