21042274

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{1447}}^1$

素因数の和:2121

約数の個数: 16

約数和(自身を含む): 34508736

約数和(自身を除く): 13466462

約数列:

[1, 2, 11, 22, 661, 1322, 1447, 2894, 7271, 14542, 15917, 31834, 956467, 1912934, 10521137, 21042274]

約数ペア:

[(1, 21042274), (2, 10521137), (11, 1912934), (22, 956467), (661, 31834), (1322, 15917), (1447, 14542), (2894, 7271)]