20808112059

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{27809}}^1$

素因数の和:27969

約数の個数: 64

約数和(自身を含む): 36522316800

約数和(自身を除く): 15714204741

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 107, 111, 189, 259, 321, 333, 749, 777, 963, 999, 2247, 2331, 2889, 3959, 6741, 6993, 11877, 20223, 27713, 27809, 35631, 83139, 83427, 106893, 194663, 249417, 250281, 583989, 748251, 750843, 1028933, 1751967, 2975563, 3086799, 5255901, 7202531, 8926689, 9260397, 20828941, 21607593, 26780067, 27781191, 62486823, 64822779, 80340201, 110095831, 187460469, 194468337, 330287493, 562381407, 770670817, 990862479, 2312012451, 2972587437, 6936037353, 20808112059]

約数ペア:

[(1, 20808112059), (3, 6936037353), (7, 2972587437), (9, 2312012451), (21, 990862479), (27, 770670817), (37, 562381407), (63, 330287493), (107, 194468337), (111, 187460469), (189, 110095831), (259, 80340201), (321, 64822779), (333, 62486823), (749, 27781191), (777, 26780067), (963, 21607593), (999, 20828941), (2247, 9260397), (2331, 8926689), (2889, 7202531), (3959, 5255901), (6741, 3086799), (6993, 2975563), (11877, 1751967), (20223, 1028933), (27713, 750843), (27809, 748251), (35631, 583989), (83139, 250281), (83427, 249417), (106893, 194663)]