28020741

素因数分解:

$3^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{1931}}^1$

素因数の和:2632

約数の個数: 16

約数和(自身を含む): 42782208

約数和(自身を除く): 14761467

約数列:

[1, 3, 7, 21, 691, 1931, 2073, 4837, 5793, 13517, 14511, 40551, 1334321, 4002963, 9340247, 28020741]

約数ペア:

[(1, 28020741), (3, 9340247), (7, 4002963), (21, 1334321), (691, 40551), (1931, 14511), (2073, 13517), (4837, 5793)]