389682009

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{67759}}^1$

素因数の和:67842

約数の個数: 20

約数和(自身を含む): 590325120

約数和(自身を除く): 200643111

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 67759, 203277, 609831, 1829493, 4810889, 5488479, 14432667, 43298001, 129894003, 389682009]

約数ペア:

[(1, 389682009), (3, 129894003), (9, 43298001), (27, 14432667), (71, 5488479), (81, 4810889), (213, 1829493), (639, 609831), (1917, 203277), (5751, 67759)]