18696610

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4441}}^1$

素因数の和:4869

約数の個数: 16

約数和(自身を含む): 33741432

約数和(自身を除く): 15044822

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 4441, 8882, 22205, 44410, 1869661, 3739322, 9348305, 18696610]

約数ペア:

[(1, 18696610), (2, 9348305), (5, 3739322), (10, 1869661), (421, 44410), (842, 22205), (2105, 8882), (4210, 4441)]