20887128

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{12613}}^1$

素因数の和:12648

約数の個数: 48

約数和(自身を含む): 59033520

約数和(自身を除く): 38146392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 46, 69, 72, 92, 138, 184, 207, 276, 414, 552, 828, 1656, 12613, 25226, 37839, 50452, 75678, 100904, 113517, 151356, 227034, 290099, 302712, 454068, 580198, 870297, 908136, 1160396, 1740594, 2320792, 2610891, 3481188, 5221782, 6962376, 10443564, 20887128]

約数ペア:

[(1, 20887128), (2, 10443564), (3, 6962376), (4, 5221782), (6, 3481188), (8, 2610891), (9, 2320792), (12, 1740594), (18, 1160396), (23, 908136), (24, 870297), (36, 580198), (46, 454068), (69, 302712), (72, 290099), (92, 227034), (138, 151356), (184, 113517), (207, 100904), (276, 75678), (414, 50452), (552, 37839), (828, 25226), (1656, 12613)]