18073287

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{5189}}^1$

素因数の和:5244

約数の個数: 20

約数和(自身を含む): 27631560

約数和(自身を除く): 9558273

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 5189, 15567, 46701, 140103, 223127, 420309, 669381, 2008143, 6024429, 18073287]

約数ペア:

[(1, 18073287), (3, 6024429), (9, 2008143), (27, 669381), (43, 420309), (81, 223127), (129, 140103), (387, 46701), (1161, 15567), (3483, 5189)]