20455487

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^2$

素因数の和:159

約数の個数: 24

約数和(自身を含む): 24169824

約数和(自身を除く): 3714337

約数列:

[1, 13, 23, 37, 43, 299, 481, 559, 851, 989, 1591, 1849, 11063, 12857, 20683, 24037, 36593, 42527, 68413, 475709, 552851, 889369, 1573499, 20455487]

約数ペア:

[(1, 20455487), (13, 1573499), (23, 889369), (37, 552851), (43, 475709), (299, 68413), (481, 42527), (559, 36593), (851, 24037), (989, 20683), (1591, 12857), (1849, 11063)]