21091389

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{599}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 31281600

約数和(自身を除く): 10190211

約数列:

[1, 3, 11, 33, 97, 121, 291, 363, 599, 1067, 1797, 3201, 6589, 11737, 19767, 35211, 58103, 72479, 174309, 217437, 639133, 1917399, 7030463, 21091389]

約数ペア:

[(1, 21091389), (3, 7030463), (11, 1917399), (33, 639133), (97, 217437), (121, 174309), (291, 72479), (363, 58103), (599, 35211), (1067, 19767), (1797, 11737), (3201, 6589)]