21206738

素因数分解:

$2^1\times 7^1\times {\mathrm{751}}^1\times {\mathrm{2017}}^1$

素因数の和:2777

約数の個数: 16

約数和(自身を含む): 36420864

約数和(自身を除く): 15214126

約数列:

[1, 2, 7, 14, 751, 1502, 2017, 4034, 5257, 10514, 14119, 28238, 1514767, 3029534, 10603369, 21206738]

約数ペア:

[(1, 21206738), (2, 10603369), (7, 3029534), (14, 1514767), (751, 28238), (1502, 14119), (2017, 10514), (4034, 5257)]