31920147

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{11783}}^1$

素因数の和:11839

約数の個数: 24

約数和(自身を含む): 53923584

約数和(自身を除く): 22003437

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 11783, 35349, 82481, 106047, 247443, 506669, 742329, 1520007, 3546683, 4560021, 10640049, 31920147]

約数ペア:

[(1, 31920147), (3, 10640049), (7, 4560021), (9, 3546683), (21, 1520007), (43, 742329), (63, 506669), (129, 247443), (301, 106047), (387, 82481), (903, 35349), (2709, 11783)]