17921870

素因数分解:

$2^1\times 5^1\times {\mathrm{433}}^1\times {\mathrm{4139}}^1$

素因数の和:4579

約数の個数: 16

約数和(自身を含む): 32341680

約数和(自身を除く): 14419810

約数列:

[1, 2, 5, 10, 433, 866, 2165, 4139, 4330, 8278, 20695, 41390, 1792187, 3584374, 8960935, 17921870]

約数ペア:

[(1, 17921870), (2, 8960935), (5, 3584374), (10, 1792187), (433, 41390), (866, 20695), (2165, 8278), (4139, 4330)]