21049030

素因数分解:

$2^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{3779}}^1$

素因数の和:4343

約数の個数: 16

約数和(自身を含む): 37966320

約数和(自身を除く): 16917290

約数列:

[1, 2, 5, 10, 557, 1114, 2785, 3779, 5570, 7558, 18895, 37790, 2104903, 4209806, 10524515, 21049030]

約数ペア:

[(1, 21049030), (2, 10524515), (5, 4209806), (10, 2104903), (557, 37790), (1114, 18895), (2785, 7558), (3779, 5570)]