19867165

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{487}}^1$

素因数の和:732

約数の個数: 16

約数和(自身を含む): 24595200

約数和(自身を除く): 4728035

約数列:

[1, 5, 41, 199, 205, 487, 995, 2435, 8159, 19967, 40795, 96913, 99835, 484565, 3973433, 19867165]

約数ペア:

[(1, 19867165), (5, 3973433), (41, 484565), (199, 99835), (205, 96913), (487, 40795), (995, 19967), (2435, 8159)]