12939745

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28439}}^1$

素因数の和:28464

約数の個数: 16

約数和(自身を含む): 19111680

約数和(自身を除く): 6171935

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 28439, 142195, 199073, 369707, 995365, 1848535, 2587949, 12939745]

約数ペア:

[(1, 12939745), (5, 2587949), (7, 1848535), (13, 995365), (35, 369707), (65, 199073), (91, 142195), (455, 28439)]