21040503

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{15551}}^1$

素因数の和:15606

約数の個数: 16

約数和(自身を含む): 31352832

約数和(自身を除く): 10312329

約数列:

[1, 3, 11, 33, 41, 123, 451, 1353, 15551, 46653, 171061, 513183, 637591, 1912773, 7013501, 21040503]

約数ペア:

[(1, 21040503), (3, 7013501), (11, 1912773), (33, 637591), (41, 513183), (123, 171061), (451, 46653), (1353, 15551)]