19957084

素因数分解:

$2^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1693}}^1$

素因数の和:2125

約数の個数: 24

約数和(自身を含む): 40032608

約数和(自身を除く): 20075524

約数列:

[1, 2, 4, 7, 14, 28, 421, 842, 1684, 1693, 2947, 3386, 5894, 6772, 11788, 11851, 23702, 47404, 712753, 1425506, 2851012, 4989271, 9978542, 19957084]

約数ペア:

[(1, 19957084), (2, 9978542), (4, 4989271), (7, 2851012), (14, 1425506), (28, 712753), (421, 47404), (842, 23702), (1684, 11851), (1693, 11788), (2947, 6772), (3386, 5894)]