21149906

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{3169}}^1$

素因数の和:3289

約数の個数: 16

約数和(自身を含む): 32866560

約数和(自身を除く): 11716654

約数列:

[1, 2, 47, 71, 94, 142, 3169, 3337, 6338, 6674, 148943, 224999, 297886, 449998, 10574953, 21149906]

約数ペア:

[(1, 21149906), (2, 10574953), (47, 449998), (71, 297886), (94, 224999), (142, 148943), (3169, 6674), (3337, 6338)]