28038933

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 49029120

約数和(自身を除く): 20990187

約数列:

[1, 3, 9, 13, 17, 27, 37, 39, 51, 111, 117, 127, 153, 221, 333, 351, 381, 459, 481, 629, 663, 999, 1143, 1443, 1651, 1887, 1989, 2159, 3429, 4329, 4699, 4953, 5661, 5967, 6477, 8177, 12987, 14097, 14859, 16983, 19431, 24531, 28067, 42291, 44577, 58293, 61087, 73593, 79883, 84201, 126873, 183261, 220779, 239649, 252603, 549783, 718947, 757809, 1038479, 1649349, 2156841, 3115437, 9346311, 28038933]

約数ペア:

[(1, 28038933), (3, 9346311), (9, 3115437), (13, 2156841), (17, 1649349), (27, 1038479), (37, 757809), (39, 718947), (51, 549783), (111, 252603), (117, 239649), (127, 220779), (153, 183261), (221, 126873), (333, 84201), (351, 79883), (381, 73593), (459, 61087), (481, 58293), (629, 44577), (663, 42291), (999, 28067), (1143, 24531), (1443, 19431), (1651, 16983), (1887, 14859), (1989, 14097), (2159, 12987), (3429, 8177), (4329, 6477), (4699, 5967), (4953, 5661)]