20172891

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1\times {\mathrm{443}}^1$

素因数の和:842

約数の個数: 16

約数和(自身を含む): 27662976

約数和(自身を除く): 7490085

約数列:

[1, 3, 43, 129, 353, 443, 1059, 1329, 15179, 19049, 45537, 57147, 156379, 469137, 6724297, 20172891]

約数ペア:

[(1, 20172891), (3, 6724297), (43, 469137), (129, 156379), (353, 57147), (443, 45537), (1059, 19049), (1329, 15179)]