21262659

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13709}}^1$

素因数の和:13770

約数の個数: 16

約数和(自身を含む): 31587840

約数和(自身を除く): 10325181

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 13709, 41127, 150799, 452397, 644323, 1932969, 7087553, 21262659]

約数ペア:

[(1, 21262659), (3, 7087553), (11, 1932969), (33, 644323), (47, 452397), (141, 150799), (517, 41127), (1551, 13709)]