81656667

素因数分解:

$3^4\times {\mathrm{227}}^1\times {\mathrm{4441}}^1$

素因数の和:4680

約数の個数: 20

約数和(自身を含む): 122545896

約数和(自身を除く): 40889229

約数列:

[1, 3, 9, 27, 81, 227, 681, 2043, 4441, 6129, 13323, 18387, 39969, 119907, 359721, 1008107, 3024321, 9072963, 27218889, 81656667]

約数ペア:

[(1, 81656667), (3, 27218889), (9, 9072963), (27, 3024321), (81, 1008107), (227, 359721), (681, 119907), (2043, 39969), (4441, 18387), (6129, 13323)]