13216437

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 21909888

約数和(自身を除く): 8693451

約数列:

[1, 3, 9, 13, 37, 39, 43, 71, 111, 117, 129, 213, 333, 387, 481, 559, 639, 923, 1443, 1591, 1677, 2627, 2769, 3053, 4329, 4773, 5031, 7881, 8307, 9159, 14319, 20683, 23643, 27477, 34151, 39689, 62049, 102453, 112961, 119067, 186147, 307359, 338883, 357201, 1016649, 1468493, 4405479, 13216437]

約数ペア:

[(1, 13216437), (3, 4405479), (9, 1468493), (13, 1016649), (37, 357201), (39, 338883), (43, 307359), (71, 186147), (111, 119067), (117, 112961), (129, 102453), (213, 62049), (333, 39689), (387, 34151), (481, 27477), (559, 23643), (639, 20683), (923, 14319), (1443, 9159), (1591, 8307), (1677, 7881), (2627, 5031), (2769, 4773), (3053, 4329)]