18087993

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 33386496

約数和(自身を除く): 15298503

約数列:

[1, 3, 7, 9, 11, 21, 33, 43, 63, 77, 99, 129, 231, 301, 387, 473, 607, 693, 903, 1419, 1821, 2709, 3311, 4249, 4257, 5463, 6677, 9933, 12747, 20031, 26101, 29799, 38241, 46739, 60093, 78303, 140217, 182707, 234909, 287111, 420651, 548121, 861333, 1644363, 2009777, 2583999, 6029331, 18087993]

約数ペア:

[(1, 18087993), (3, 6029331), (7, 2583999), (9, 2009777), (11, 1644363), (21, 861333), (33, 548121), (43, 420651), (63, 287111), (77, 234909), (99, 182707), (129, 140217), (231, 78303), (301, 60093), (387, 46739), (473, 38241), (607, 29799), (693, 26101), (903, 20031), (1419, 12747), (1821, 9933), (2709, 6677), (3311, 5463), (4249, 4257)]