21284210

素因数分解:

$2^1\times 5^1\times {\mathrm{1049}}^1\times {\mathrm{2029}}^1$

素因数の和:3085

約数の個数: 16

約数和(自身を含む): 38367000

約数和(自身を除く): 17082790

約数列:

[1, 2, 5, 10, 1049, 2029, 2098, 4058, 5245, 10145, 10490, 20290, 2128421, 4256842, 10642105, 21284210]

約数ペア:

[(1, 21284210), (2, 10642105), (5, 4256842), (10, 2128421), (1049, 20290), (2029, 10490), (2098, 10145), (4058, 5245)]