21110005

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2087}}^1$

素因数の和:2133

約数の個数: 24

約数和(自身を含む): 30768768

約数和(自身を除く): 9658763

約数列:

[1, 5, 7, 17, 35, 85, 119, 289, 595, 1445, 2023, 2087, 10115, 10435, 14609, 35479, 73045, 177395, 248353, 603143, 1241765, 3015715, 4222001, 21110005]

約数ペア:

[(1, 21110005), (5, 4222001), (7, 3015715), (17, 1241765), (35, 603143), (85, 248353), (119, 177395), (289, 73045), (595, 35479), (1445, 14609), (2023, 10435), (2087, 10115)]