21185800

素因数分解:

$2^3\times 5^2\times {\mathrm{105929}}^1$

素因数の和:105945

約数の個数: 24

約数和(自身を含む): 49257450

約数和(自身を除く): 28071650

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 105929, 211858, 423716, 529645, 847432, 1059290, 2118580, 2648225, 4237160, 5296450, 10592900, 21185800]

約数ペア:

[(1, 21185800), (2, 10592900), (4, 5296450), (5, 4237160), (8, 2648225), (10, 2118580), (20, 1059290), (25, 847432), (40, 529645), (50, 423716), (100, 211858), (200, 105929)]