21292161

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{15737}}^1$

素因数の和:15792

約数の個数: 16

約数和(自身を含む): 31727808

約数和(自身を除く): 10435647

約数列:

[1, 3, 11, 33, 41, 123, 451, 1353, 15737, 47211, 173107, 519321, 645217, 1935651, 7097387, 21292161]

約数ペア:

[(1, 21292161), (3, 7097387), (11, 1935651), (33, 645217), (41, 519321), (123, 173107), (451, 47211), (1353, 15737)]