20971578

素因数分解:

$2^1\times 3^1\times {\mathrm{479}}^1\times {\mathrm{7297}}^1$

素因数の和:7781

約数の個数: 16

約数和(自身を含む): 42036480

約数和(自身を除く): 21064902

約数列:

[1, 2, 3, 6, 479, 958, 1437, 2874, 7297, 14594, 21891, 43782, 3495263, 6990526, 10485789, 20971578]

約数ペア:

[(1, 20971578), (2, 10485789), (3, 6990526), (6, 3495263), (479, 43782), (958, 21891), (1437, 14594), (2874, 7297)]