21166047

素因数分解:

$3^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1759}}^1$

素因数の和:1963

約数の個数: 24

約数和(自身を含む): 35143680

約数和(自身を除く): 13977633

約数列:

[1, 3, 7, 9, 21, 63, 191, 573, 1337, 1719, 1759, 4011, 5277, 12033, 12313, 15831, 36939, 110817, 335969, 1007907, 2351783, 3023721, 7055349, 21166047]

約数ペア:

[(1, 21166047), (3, 7055349), (7, 3023721), (9, 2351783), (21, 1007907), (63, 335969), (191, 110817), (573, 36939), (1337, 15831), (1719, 12313), (1759, 12033), (4011, 5277)]