678294027

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 1069009920

約数和(自身を除く): 390715893

約数列:

[1, 3, 9, 27, 37, 71, 73, 111, 131, 213, 219, 333, 393, 639, 657, 999, 1179, 1917, 1971, 2627, 2701, 3537, 4847, 5183, 7881, 8103, 9301, 9563, 14541, 15549, 23643, 24309, 27903, 28689, 43623, 46647, 70929, 72927, 83709, 86067, 130869, 139941, 191771, 251127, 258201, 344137, 353831, 575313, 678973, 1032411, 1061493, 1725939, 2036919, 3097233, 3184479, 5177817, 6110757, 9291699, 9553437, 18332271, 25122001, 75366003, 226098009, 678294027]

約数ペア:

[(1, 678294027), (3, 226098009), (9, 75366003), (27, 25122001), (37, 18332271), (71, 9553437), (73, 9291699), (111, 6110757), (131, 5177817), (213, 3184479), (219, 3097233), (333, 2036919), (393, 1725939), (639, 1061493), (657, 1032411), (999, 678973), (1179, 575313), (1917, 353831), (1971, 344137), (2627, 258201), (2701, 251127), (3537, 191771), (4847, 139941), (5183, 130869), (7881, 86067), (8103, 83709), (9301, 72927), (9563, 70929), (14541, 46647), (15549, 43623), (23643, 28689), (24309, 27903)]