28815691437

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{636403}}^1$

素因数の和:636471

約数の個数: 40

約数和(自身を含む): 47435008544

約数和(自身を除く): 18619317107

約数列:

[1, 3, 9, 13, 27, 39, 43, 81, 117, 129, 351, 387, 559, 1053, 1161, 1677, 3483, 5031, 15093, 45279, 636403, 1909209, 5727627, 8273239, 17182881, 24819717, 27365329, 51548643, 74459151, 82095987, 223377453, 246287961, 355749277, 670132359, 738863883, 1067247831, 2216591649, 3201743493, 9605230479, 28815691437]

約数ペア:

[(1, 28815691437), (3, 9605230479), (9, 3201743493), (13, 2216591649), (27, 1067247831), (39, 738863883), (43, 670132359), (81, 355749277), (117, 246287961), (129, 223377453), (351, 82095987), (387, 74459151), (559, 51548643), (1053, 27365329), (1161, 24819717), (1677, 17182881), (3483, 8273239), (5031, 5727627), (15093, 1909209), (45279, 636403)]