20507553

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2381}}^1$

素因数の和:2430

約数の個数: 32

約数和(自身を含む): 34300800

約数和(自身を除く): 13793247

約数列:

[1, 3, 9, 11, 27, 29, 33, 87, 99, 261, 297, 319, 783, 957, 2381, 2871, 7143, 8613, 21429, 26191, 64287, 69049, 78573, 207147, 235719, 621441, 707157, 759539, 1864323, 2278617, 6835851, 20507553]

約数ペア:

[(1, 20507553), (3, 6835851), (9, 2278617), (11, 1864323), (27, 759539), (29, 707157), (33, 621441), (87, 235719), (99, 207147), (261, 78573), (297, 69049), (319, 64287), (783, 26191), (957, 21429), (2381, 8613), (2871, 7143)]