20806591687

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{82729}}^1$

素因数の和:82847

約数の個数: 32

約数和(自身を含む): 26261811200

約数和(自身を除く): 5455219513

約数列:

[1, 7, 19, 31, 61, 133, 217, 427, 589, 1159, 1891, 4123, 8113, 13237, 35929, 82729, 251503, 579103, 1571851, 2564599, 5046469, 11002957, 17952193, 35325283, 48727381, 95882911, 156440539, 341091667, 671180377, 1095083773, 2972370241, 20806591687]

約数ペア:

[(1, 20806591687), (7, 2972370241), (19, 1095083773), (31, 671180377), (61, 341091667), (133, 156440539), (217, 95882911), (427, 48727381), (589, 35325283), (1159, 17952193), (1891, 11002957), (4123, 5046469), (8113, 2564599), (13237, 1571851), (35929, 579103), (82729, 251503)]