12789028

素因数分解:

$2^2\times 7^1\times {\mathrm{661}}^1\times {\mathrm{691}}^1$

素因数の和:1363

約数の個数: 24

約数和(自身を含む): 25653824

約数和(自身を除く): 12864796

約数列:

[1, 2, 4, 7, 14, 28, 661, 691, 1322, 1382, 2644, 2764, 4627, 4837, 9254, 9674, 18508, 19348, 456751, 913502, 1827004, 3197257, 6394514, 12789028]

約数ペア:

[(1, 12789028), (2, 6394514), (4, 3197257), (7, 1827004), (14, 913502), (28, 456751), (661, 19348), (691, 18508), (1322, 9674), (1382, 9254), (2644, 4837), (2764, 4627)]