18142839

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 32686080

約数和(自身を除く): 14543241

約数列:

[1, 3, 9, 11, 13, 27, 33, 37, 39, 99, 111, 117, 127, 143, 297, 333, 351, 381, 407, 429, 481, 999, 1143, 1221, 1287, 1397, 1443, 1651, 3429, 3663, 3861, 4191, 4329, 4699, 4953, 5291, 10989, 12573, 12987, 14097, 14859, 15873, 18161, 37719, 42291, 44577, 47619, 51689, 54483, 61087, 126873, 142857, 155067, 163449, 183261, 465201, 490347, 549783, 671957, 1395603, 1649349, 2015871, 6047613, 18142839]

約数ペア:

[(1, 18142839), (3, 6047613), (9, 2015871), (11, 1649349), (13, 1395603), (27, 671957), (33, 549783), (37, 490347), (39, 465201), (99, 183261), (111, 163449), (117, 155067), (127, 142857), (143, 126873), (297, 61087), (333, 54483), (351, 51689), (381, 47619), (407, 44577), (429, 42291), (481, 37719), (999, 18161), (1143, 15873), (1221, 14859), (1287, 14097), (1397, 12987), (1443, 12573), (1651, 10989), (3429, 5291), (3663, 4953), (3861, 4699), (4191, 4329)]