81729729

素因数分解:

$3^4\times {\mathrm{821}}^1\times {\mathrm{1229}}^1$

素因数の和:2062

約数の個数: 20

約数和(自身を含む): 122338260

約数和(自身を除く): 40608531

約数列:

[1, 3, 9, 27, 81, 821, 1229, 2463, 3687, 7389, 11061, 22167, 33183, 66501, 99549, 1009009, 3027027, 9081081, 27243243, 81729729]

約数ペア:

[(1, 81729729), (3, 27243243), (9, 9081081), (27, 3027027), (81, 1009009), (821, 99549), (1229, 66501), (2463, 33183), (3687, 22167), (7389, 11061)]