15691689

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3119}}^1$

素因数の和:3181

約数の個数: 24

約数和(自身を含む): 24984960

約数和(自身を除く): 9293271

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 3119, 5031, 9357, 28071, 40547, 121641, 134117, 364923, 402351, 1207053, 1743521, 5230563, 15691689]

約数ペア:

[(1, 15691689), (3, 5230563), (9, 1743521), (13, 1207053), (39, 402351), (43, 364923), (117, 134117), (129, 121641), (387, 40547), (559, 28071), (1677, 9357), (3119, 5031)]