81219699

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:465

約数の個数: 64

約数和(自身を含む): 142272000

約数和(自身を除く): 61052301

約数列:

[1, 3, 9, 11, 19, 27, 33, 37, 57, 99, 111, 171, 209, 297, 333, 389, 407, 513, 627, 703, 999, 1167, 1221, 1881, 2109, 3501, 3663, 4279, 5643, 6327, 7391, 7733, 10503, 10989, 12837, 14393, 18981, 22173, 23199, 38511, 43179, 66519, 69597, 81301, 115533, 129537, 158323, 199557, 208791, 243903, 273467, 388611, 474969, 731709, 820401, 1424907, 2195127, 2461203, 3008137, 4274721, 7383609, 9024411, 27073233, 81219699]

約数ペア:

[(1, 81219699), (3, 27073233), (9, 9024411), (11, 7383609), (19, 4274721), (27, 3008137), (33, 2461203), (37, 2195127), (57, 1424907), (99, 820401), (111, 731709), (171, 474969), (209, 388611), (297, 273467), (333, 243903), (389, 208791), (407, 199557), (513, 158323), (627, 129537), (703, 115533), (999, 81301), (1167, 69597), (1221, 66519), (1881, 43179), (2109, 38511), (3501, 23199), (3663, 22173), (4279, 18981), (5643, 14393), (6327, 12837), (7391, 10989), (7733, 10503)]