638520054

素因数分解:

$2^1\times 3^1\times {\mathrm{2131}}^1\times {\mathrm{49939}}^1$

素因数の和:52075

約数の個数: 16

約数和(自身を含む): 1277664960

約数和(自身を除く): 639144906

約数列:

[1, 2, 3, 6, 2131, 4262, 6393, 12786, 49939, 99878, 149817, 299634, 106420009, 212840018, 319260027, 638520054]

約数ペア:

[(1, 638520054), (2, 319260027), (3, 212840018), (6, 106420009), (2131, 299634), (4262, 149817), (6393, 99878), (12786, 49939)]