28436331

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:101

約数の個数: 72

約数和(自身を含む): 51889152

約数和(自身を除く): 23452821

約数列:

[1, 3, 7, 11, 19, 21, 31, 33, 57, 77, 93, 121, 133, 209, 217, 231, 341, 361, 363, 399, 589, 627, 651, 847, 1023, 1083, 1463, 1767, 2299, 2387, 2527, 2541, 3751, 3971, 4123, 4389, 6479, 6897, 7161, 7581, 11191, 11253, 11913, 12369, 16093, 19437, 26257, 27797, 33573, 43681, 45353, 48279, 71269, 78337, 78771, 83391, 123101, 131043, 136059, 213807, 235011, 305767, 369303, 498883, 861707, 917301, 1354111, 1496649, 2585121, 4062333, 9478777, 28436331]

約数ペア:

[(1, 28436331), (3, 9478777), (7, 4062333), (11, 2585121), (19, 1496649), (21, 1354111), (31, 917301), (33, 861707), (57, 498883), (77, 369303), (93, 305767), (121, 235011), (133, 213807), (209, 136059), (217, 131043), (231, 123101), (341, 83391), (361, 78771), (363, 78337), (399, 71269), (589, 48279), (627, 45353), (651, 43681), (847, 33573), (1023, 27797), (1083, 26257), (1463, 19437), (1767, 16093), (2299, 12369), (2387, 11913), (2527, 11253), (2541, 11191), (3751, 7581), (3971, 7161), (4123, 6897), (4389, 6479)]