21071031838

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1\times {\mathrm{371479}}^1$

素因数の和:371919

約数の個数: 16

約数和(自身を含む): 32095872000

約数和(自身を除く): 11024840162

約数列:

[1, 2, 79, 158, 359, 718, 28361, 56722, 371479, 742958, 29346841, 58693682, 133360961, 266721922, 10535515919, 21071031838]

約数ペア:

[(1, 21071031838), (2, 10535515919), (79, 266721922), (158, 133360961), (359, 58693682), (718, 29346841), (28361, 742958), (56722, 371479)]