28783521

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 47167120

約数和(自身を除く): 18383599

約数列:

[1, 3, 9, 13, 37, 39, 61, 109, 111, 117, 183, 327, 333, 481, 549, 793, 981, 1417, 1443, 2257, 2379, 4033, 4251, 4329, 6649, 6771, 7137, 12099, 12753, 19947, 20313, 29341, 36297, 52429, 59841, 86437, 88023, 157287, 246013, 259311, 264069, 471861, 738039, 777933, 2214117, 3198169, 9594507, 28783521]

約数ペア:

[(1, 28783521), (3, 9594507), (9, 3198169), (13, 2214117), (37, 777933), (39, 738039), (61, 471861), (109, 264069), (111, 259311), (117, 246013), (183, 157287), (327, 88023), (333, 86437), (481, 59841), (549, 52429), (793, 36297), (981, 29341), (1417, 20313), (1443, 19947), (2257, 12753), (2379, 12099), (4033, 7137), (4251, 6771), (4329, 6649)]