20628874

素因数分解:

$2^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{3001}}^1$

素因数の和:3501

約数の個数: 16

約数和(自身を含む): 35447616

約数和(自身を除く): 14818742

約数列:

[1, 2, 7, 14, 491, 982, 3001, 3437, 6002, 6874, 21007, 42014, 1473491, 2946982, 10314437, 20628874]

約数ペア:

[(1, 20628874), (2, 10314437), (7, 2946982), (14, 1473491), (491, 42014), (982, 21007), (3001, 6874), (3437, 6002)]