12505857

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2411}}^1$

素因数の和:2453

約数の個数: 32

約数和(自身を含む): 21611520

約数和(自身を除く): 9105663

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 2411, 5187, 7233, 16877, 31343, 45809, 50631, 94029, 137427, 219401, 320663, 595517, 658203, 961989, 1786551, 4168619, 12505857]

約数ペア:

[(1, 12505857), (3, 4168619), (7, 1786551), (13, 961989), (19, 658203), (21, 595517), (39, 320663), (57, 219401), (91, 137427), (133, 94029), (247, 50631), (273, 45809), (399, 31343), (741, 16877), (1729, 7233), (2411, 5187)]