21132221

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{1039}}^1$

素因数の和:1136

約数の個数: 12

約数和(自身を含む): 23624640

約数和(自身を除く): 2492419

約数列:

[1, 11, 43, 473, 1039, 1849, 11429, 20339, 44677, 491447, 1921111, 21132221]

約数ペア:

[(1, 21132221), (11, 1921111), (43, 491447), (473, 44677), (1039, 20339), (1849, 11429)]