28439901

素因数分解:

$3^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{2339}}^1$

素因数の和:2545

約数の個数: 24

約数和(自身を含む): 47211840

約数和(自身を除く): 18771939

約数列:

[1, 3, 7, 9, 21, 63, 193, 579, 1351, 1737, 2339, 4053, 7017, 12159, 16373, 21051, 49119, 147357, 451427, 1354281, 3159989, 4062843, 9479967, 28439901]

約数ペア:

[(1, 28439901), (3, 9479967), (7, 4062843), (9, 3159989), (21, 1354281), (63, 451427), (193, 147357), (579, 49119), (1351, 21051), (1737, 16373), (2339, 12159), (4053, 7017)]