21390188414

素因数分解:

$2^1\times 7^1\times {\mathrm{3061}}^1\times {\mathrm{499141}}^1$

素因数の和:502211

約数の個数: 16

約数和(自身を含む): 36680947296

約数和(自身を除く): 15290758882

約数列:

[1, 2, 7, 14, 3061, 6122, 21427, 42854, 499141, 998282, 3493987, 6987974, 1527870601, 3055741202, 10695094207, 21390188414]

約数ペア:

[(1, 21390188414), (2, 10695094207), (7, 3055741202), (14, 1527870601), (3061, 6987974), (6122, 3493987), (21427, 998282), (42854, 499141)]