2100078819

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:482

約数の個数: 80

約数和(自身を含む): 3388909920

約数和(自身を除く): 1288831101

約数列:

[1, 3, 9, 27, 29, 37, 73, 81, 87, 111, 219, 261, 331, 333, 657, 783, 993, 999, 1073, 1971, 2117, 2349, 2701, 2979, 2997, 3219, 5913, 6351, 8103, 8937, 9599, 9657, 12247, 19053, 24163, 24309, 26811, 28797, 28971, 36741, 57159, 72489, 72927, 78329, 86391, 86913, 110223, 171477, 217467, 218781, 234987, 259173, 330669, 355163, 652401, 700727, 704961, 777519, 894031, 992007, 1065489, 1957203, 2102181, 2114883, 2682093, 3196467, 6306543, 6344649, 8046279, 9589401, 18919629, 24138837, 25926899, 28768203, 56758887, 72416511, 77780697, 233342091, 700026273, 2100078819]

約数ペア:

[(1, 2100078819), (3, 700026273), (9, 233342091), (27, 77780697), (29, 72416511), (37, 56758887), (73, 28768203), (81, 25926899), (87, 24138837), (111, 18919629), (219, 9589401), (261, 8046279), (331, 6344649), (333, 6306543), (657, 3196467), (783, 2682093), (993, 2114883), (999, 2102181), (1073, 1957203), (1971, 1065489), (2117, 992007), (2349, 894031), (2701, 777519), (2979, 704961), (2997, 700727), (3219, 652401), (5913, 355163), (6351, 330669), (8103, 259173), (8937, 234987), (9599, 218781), (9657, 217467), (12247, 171477), (19053, 110223), (24163, 86913), (24309, 86391), (26811, 78329), (28797, 72927), (28971, 72489), (36741, 57159)]