20493109

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1019}}^1$

素因数の和:1069

約数の個数: 24

約数和(自身を含む): 26879040

約数和(自身を除く): 6385931

約数列:

[1, 7, 13, 17, 91, 119, 169, 221, 1019, 1183, 1547, 2873, 7133, 13247, 17323, 20111, 92729, 121261, 172211, 225199, 1205477, 1576393, 2927587, 20493109]

約数ペア:

[(1, 20493109), (7, 2927587), (13, 1576393), (17, 1205477), (91, 225199), (119, 172211), (169, 121261), (221, 92729), (1019, 20111), (1183, 17323), (1547, 13247), (2873, 7133)]