228538989

素因数分解:

$3^4\times 7^2\times {\mathrm{71}}^1\times {\mathrm{811}}^1$

素因数の和:908

約数の個数: 60

約数和(自身を含む): 403226208

約数和(自身を除く): 174687219

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 71, 81, 147, 189, 213, 441, 497, 567, 639, 811, 1323, 1491, 1917, 2433, 3479, 3969, 4473, 5677, 5751, 7299, 10437, 13419, 17031, 21897, 31311, 39739, 40257, 51093, 57581, 65691, 93933, 119217, 153279, 172743, 281799, 357651, 403067, 459837, 518229, 1072953, 1209201, 1554687, 2821469, 3218859, 3627603, 4664061, 8464407, 10882809, 25393221, 32648427, 76179663, 228538989]

約数ペア:

[(1, 228538989), (3, 76179663), (7, 32648427), (9, 25393221), (21, 10882809), (27, 8464407), (49, 4664061), (63, 3627603), (71, 3218859), (81, 2821469), (147, 1554687), (189, 1209201), (213, 1072953), (441, 518229), (497, 459837), (567, 403067), (639, 357651), (811, 281799), (1323, 172743), (1491, 153279), (1917, 119217), (2433, 93933), (3479, 65691), (3969, 57581), (4473, 51093), (5677, 40257), (5751, 39739), (7299, 31311), (10437, 21897), (13419, 17031)]