21305889

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3119}}^1$

素因数の和:3162

約数の個数: 32

約数和(自身を含む): 35942400

約数和(自身を除く): 14636511

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 99, 207, 253, 297, 621, 759, 2277, 3119, 6831, 9357, 28071, 34309, 71737, 84213, 102927, 215211, 308781, 645633, 789107, 926343, 1936899, 2367321, 7101963, 21305889]

約数ペア:

[(1, 21305889), (3, 7101963), (9, 2367321), (11, 1936899), (23, 926343), (27, 789107), (33, 645633), (69, 308781), (99, 215211), (207, 102927), (253, 84213), (297, 71737), (621, 34309), (759, 28071), (2277, 9357), (3119, 6831)]