20808718

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{479}}^1$

素因数の和:624

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 16516082

約数列:

[1, 2, 7, 14, 29, 58, 107, 203, 214, 406, 479, 749, 958, 1498, 3103, 3353, 6206, 6706, 13891, 21721, 27782, 43442, 51253, 97237, 102506, 194474, 358771, 717542, 1486337, 2972674, 10404359, 20808718]

約数ペア:

[(1, 20808718), (2, 10404359), (7, 2972674), (14, 1486337), (29, 717542), (58, 358771), (107, 194474), (203, 102506), (214, 97237), (406, 51253), (479, 43442), (749, 27782), (958, 21721), (1498, 13891), (3103, 6706), (3353, 6206)]