28009723

素因数分解:

$7^3\times {\mathrm{127}}^1\times {\mathrm{643}}^1$

素因数の和:791

約数の個数: 16

約数和(自身を含む): 32972800

約数和(自身を除く): 4963077

約数列:

[1, 7, 49, 127, 343, 643, 889, 4501, 6223, 31507, 43561, 81661, 220549, 571627, 4001389, 28009723]

約数ペア:

[(1, 28009723), (7, 4001389), (49, 571627), (127, 220549), (343, 81661), (643, 43561), (889, 31507), (4501, 6223)]