20817670

素因数分解:

$2^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{6781}}^1$

素因数の和:7095

約数の個数: 16

約数和(自身を含む): 37599408

約数和(自身を除く): 16781738

約数列:

[1, 2, 5, 10, 307, 614, 1535, 3070, 6781, 13562, 33905, 67810, 2081767, 4163534, 10408835, 20817670]

約数ペア:

[(1, 20817670), (2, 10408835), (5, 4163534), (10, 2081767), (307, 67810), (614, 33905), (1535, 13562), (3070, 6781)]