21108040

素因数分解:

$2^3\times 5^1\times {\mathrm{527701}}^1$

素因数の和:527712

約数の個数: 16

約数和(自身を含む): 47493180

約数和(自身を除く): 26385140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 527701, 1055402, 2110804, 2638505, 4221608, 5277010, 10554020, 21108040]

約数ペア:

[(1, 21108040), (2, 10554020), (4, 5277010), (5, 4221608), (8, 2638505), (10, 2110804), (20, 1055402), (40, 527701)]