20801473

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{599}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 26812800

約数和(自身を除く): 6011327

約数列:

[1, 7, 11, 41, 77, 121, 287, 451, 599, 847, 3157, 4193, 4961, 6589, 24559, 34727, 46123, 72479, 171913, 270149, 507353, 1891043, 2971639, 20801473]

約数ペア:

[(1, 20801473), (7, 2971639), (11, 1891043), (41, 507353), (77, 270149), (121, 171913), (287, 72479), (451, 46123), (599, 34727), (847, 24559), (3157, 6589), (4193, 4961)]