21400258

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{42293}}^1$

素因数の和:42329

約数の個数: 16

約数和(自身を含む): 36542016

約数和(自身を除く): 15141758

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 42293, 84586, 465223, 930446, 972739, 1945478, 10700129, 21400258]

約数ペア:

[(1, 21400258), (2, 10700129), (11, 1945478), (22, 972739), (23, 930446), (46, 465223), (253, 84586), (506, 42293)]