28209951

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4523}}^1$

素因数の和:4553

約数の個数: 40

約数和(自身を含む): 52550784

約数和(自身を除く): 24340833

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 297, 567, 693, 891, 2079, 4523, 6237, 13569, 31661, 40707, 49753, 94983, 122121, 149259, 284949, 348271, 366363, 447777, 854847, 1044813, 1343331, 2564541, 3134439, 4029993, 9403317, 28209951]

約数ペア:

[(1, 28209951), (3, 9403317), (7, 4029993), (9, 3134439), (11, 2564541), (21, 1343331), (27, 1044813), (33, 854847), (63, 447777), (77, 366363), (81, 348271), (99, 284949), (189, 149259), (231, 122121), (297, 94983), (567, 49753), (693, 40707), (891, 31661), (2079, 13569), (4523, 6237)]