81358874

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{9601}}^1$

素因数の和:9845

約数の個数: 16

約数和(自身を含む): 129050880

約数和(自身を除く): 47692006

約数列:

[1, 2, 19, 38, 223, 446, 4237, 8474, 9601, 19202, 182419, 364838, 2141023, 4282046, 40679437, 81358874]

約数ペア:

[(1, 81358874), (2, 40679437), (19, 4282046), (38, 2141023), (223, 364838), (446, 182419), (4237, 19202), (8474, 9601)]