20019231

素因数分解:

$3^4\times {\mathrm{59}}^2\times {\mathrm{71}}^1$

素因数の和:201

約数の個数: 30

約数和(自身を含む): 30849192

約数和(自身を除く): 10829961

約数列:

[1, 3, 9, 27, 59, 71, 81, 177, 213, 531, 639, 1593, 1917, 3481, 4189, 4779, 5751, 10443, 12567, 31329, 37701, 93987, 113103, 247151, 281961, 339309, 741453, 2224359, 6673077, 20019231]

約数ペア:

[(1, 20019231), (3, 6673077), (9, 2224359), (27, 741453), (59, 339309), (71, 281961), (81, 247151), (177, 113103), (213, 93987), (531, 37701), (639, 31329), (1593, 12567), (1917, 10443), (3481, 5751), (4189, 4779)]