28448721

素因数分解:

$3^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1607}}^1$

素因数の和:1901

約数の個数: 24

約数和(自身を含む): 47159424

約数和(自身を除く): 18710703

約数列:

[1, 3, 7, 9, 21, 63, 281, 843, 1607, 1967, 2529, 4821, 5901, 11249, 14463, 17703, 33747, 101241, 451567, 1354701, 3160969, 4064103, 9482907, 28448721]

約数ペア:

[(1, 28448721), (3, 9482907), (7, 4064103), (9, 3160969), (21, 1354701), (63, 451567), (281, 101241), (843, 33747), (1607, 17703), (1967, 14463), (2529, 11249), (4821, 5901)]