28400757

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{11177}}^1$

素因数の和:11209

約数の個数: 24

約数和(自身を含む): 47573568

約数和(自身を除く): 19172811

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 11177, 33531, 78239, 122947, 234717, 368841, 860629, 1352417, 2581887, 4057251, 9466919, 28400757]

約数ペア:

[(1, 28400757), (3, 9466919), (7, 4057251), (11, 2581887), (21, 1352417), (33, 860629), (77, 368841), (121, 234717), (231, 122947), (363, 78239), (847, 33531), (2541, 11177)]