21105800

素因数分解:

$2^3\times 5^2\times {\mathrm{105529}}^1$

素因数の和:105545

約数の個数: 24

約数和(自身を含む): 49071450

約数和(自身を除く): 27965650

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 105529, 211058, 422116, 527645, 844232, 1055290, 2110580, 2638225, 4221160, 5276450, 10552900, 21105800]

約数ペア:

[(1, 21105800), (2, 10552900), (4, 5276450), (5, 4221160), (8, 2638225), (10, 2110580), (20, 1055290), (25, 844232), (40, 527645), (50, 422116), (100, 211058), (200, 105529)]