21350791

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6763}}^1$

素因数の和:6822

約数の個数: 16

約数和(自身を含む): 27272448

約数和(自身を除く): 5921657

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 6763, 47341, 74393, 277283, 520751, 1940981, 3050113, 21350791]

約数ペア:

[(1, 21350791), (7, 3050113), (11, 1940981), (41, 520751), (77, 277283), (287, 74393), (451, 47341), (3157, 6763)]