28155771

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{4339}}^1$

素因数の和:4455

約数の個数: 24

約数和(自身を含む): 46941440

約数和(自身を除く): 18785669

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 4339, 6489, 13017, 30373, 39051, 91119, 273357, 446917, 1340751, 3128419, 4022253, 9385257, 28155771]

約数ペア:

[(1, 28155771), (3, 9385257), (7, 4022253), (9, 3128419), (21, 1340751), (63, 446917), (103, 273357), (309, 91119), (721, 39051), (927, 30373), (2163, 13017), (4339, 6489)]