20168291

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{571}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 25122240

約数和(自身を除く): 4953949

約数列:

[1, 11, 13, 19, 143, 169, 209, 247, 571, 1859, 2717, 3211, 6281, 7423, 10849, 35321, 81653, 96499, 119339, 141037, 1061489, 1551407, 1833481, 20168291]

約数ペア:

[(1, 20168291), (11, 1833481), (13, 1551407), (19, 1061489), (143, 141037), (169, 119339), (209, 96499), (247, 81653), (571, 35321), (1859, 10849), (2717, 7423), (3211, 6281)]