20867182

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{499}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 37440000

約数和(自身を除く): 16572818

約数列:

[1, 2, 7, 14, 29, 58, 103, 203, 206, 406, 499, 721, 998, 1442, 2987, 3493, 5974, 6986, 14471, 20909, 28942, 41818, 51397, 101297, 102794, 202594, 359779, 719558, 1490513, 2981026, 10433591, 20867182]

約数ペア:

[(1, 20867182), (2, 10433591), (7, 2981026), (14, 1490513), (29, 719558), (58, 359779), (103, 202594), (203, 102794), (206, 101297), (406, 51397), (499, 41818), (721, 28942), (998, 20909), (1442, 14471), (2987, 6986), (3493, 5974)]