21425831

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{449}}^1$

素因数の和:874

約数の個数: 16

約数和(自身を含む): 26049600

約数和(自身を除く): 4623769

約数列:

[1, 7, 17, 119, 401, 449, 2807, 3143, 6817, 7633, 47719, 53431, 180049, 1260343, 3060833, 21425831]

約数ペア:

[(1, 21425831), (7, 3060833), (17, 1260343), (119, 180049), (401, 53431), (449, 47719), (2807, 7633), (3143, 6817)]