21452050

素因数分解:

$2^1\times 5^2\times {\mathrm{409}}^1\times {\mathrm{1049}}^1$

素因数の和:1470

約数の個数: 24

約数和(自身を含む): 40036500

約数和(自身を除く): 18584450

約数列:

[1, 2, 5, 10, 25, 50, 409, 818, 1049, 2045, 2098, 4090, 5245, 10225, 10490, 20450, 26225, 52450, 429041, 858082, 2145205, 4290410, 10726025, 21452050]

約数ペア:

[(1, 21452050), (2, 10726025), (5, 4290410), (10, 2145205), (25, 858082), (50, 429041), (409, 52450), (818, 26225), (1049, 20450), (2045, 10490), (2098, 10225), (4090, 5245)]