21801802

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{2237}}^1$

素因数の和:2693

約数の個数: 16

約数和(自身を含む): 35772192

約数和(自身を除く): 13970390

約数列:

[1, 2, 11, 22, 443, 886, 2237, 4474, 4873, 9746, 24607, 49214, 990991, 1981982, 10900901, 21801802]

約数ペア:

[(1, 21801802), (2, 10900901), (11, 1981982), (22, 990991), (443, 49214), (886, 24607), (2237, 9746), (4474, 4873)]