18147789

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 31135104

約数和(自身を除く): 12987315

約数列:

[1, 3, 9, 11, 17, 33, 41, 51, 99, 123, 153, 187, 263, 369, 451, 561, 697, 789, 1353, 1683, 2091, 2367, 2893, 4059, 4471, 6273, 7667, 8679, 10783, 13413, 23001, 26037, 32349, 40239, 49181, 69003, 97047, 118613, 147543, 183311, 355839, 442629, 549933, 1067517, 1649799, 2016421, 6049263, 18147789]

約数ペア:

[(1, 18147789), (3, 6049263), (9, 2016421), (11, 1649799), (17, 1067517), (33, 549933), (41, 442629), (51, 355839), (99, 183311), (123, 147543), (153, 118613), (187, 97047), (263, 69003), (369, 49181), (451, 40239), (561, 32349), (697, 26037), (789, 23001), (1353, 13413), (1683, 10783), (2091, 8679), (2367, 7667), (2893, 6273), (4059, 4471)]