20206431

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7459}}^1$

素因数の和:7515

約数の個数: 24

約数和(自身を含む): 34136960

約数和(自身を除く): 13930529

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7459, 22377, 52213, 67131, 156639, 320737, 469917, 962211, 2245159, 2886633, 6735477, 20206431]

約数ペア:

[(1, 20206431), (3, 6735477), (7, 2886633), (9, 2245159), (21, 962211), (43, 469917), (63, 320737), (129, 156639), (301, 67131), (387, 52213), (903, 22377), (2709, 7459)]