31204971

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{11519}}^1$

素因数の和:11575

約数の個数: 24

約数和(自身を含む): 52715520

約数和(自身を除く): 21510549

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 11519, 34557, 80633, 103671, 241899, 495317, 725697, 1485951, 3467219, 4457853, 10401657, 31204971]

約数ペア:

[(1, 31204971), (3, 10401657), (7, 4457853), (9, 3467219), (21, 1485951), (43, 725697), (63, 495317), (129, 241899), (301, 103671), (387, 80633), (903, 34557), (2709, 11519)]