638865122

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{443041}}^1$

素因数の和:443153

約数の個数: 16

約数和(自身を含む): 1105832832

約数和(自身を除く): 466967710

約数列:

[1, 2, 7, 14, 103, 206, 721, 1442, 443041, 886082, 3101287, 6202574, 45633223, 91266446, 319432561, 638865122]

約数ペア:

[(1, 638865122), (2, 319432561), (7, 91266446), (14, 45633223), (103, 6202574), (206, 3101287), (721, 886082), (1442, 443041)]