21389286

素因数分解:

$2^1\times 3^1\times {\mathrm{673}}^1\times {\mathrm{5297}}^1$

素因数の和:5975

約数の個数: 16

約数和(自身を含む): 42850224

約数和(自身を除く): 21460938

約数列:

[1, 2, 3, 6, 673, 1346, 2019, 4038, 5297, 10594, 15891, 31782, 3564881, 7129762, 10694643, 21389286]

約数ペア:

[(1, 21389286), (2, 10694643), (3, 7129762), (6, 3564881), (673, 31782), (1346, 15891), (2019, 10594), (4038, 5297)]