21087400

素因数分解:

$2^3\times 5^2\times {\mathrm{105437}}^1$

素因数の和:105453

約数の個数: 24

約数和(自身を含む): 49028670

約数和(自身を除く): 27941270

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 105437, 210874, 421748, 527185, 843496, 1054370, 2108740, 2635925, 4217480, 5271850, 10543700, 21087400]

約数ペア:

[(1, 21087400), (2, 10543700), (4, 5271850), (5, 4217480), (8, 2635925), (10, 2108740), (20, 1054370), (25, 843496), (40, 527185), (50, 421748), (100, 210874), (200, 105437)]