2857239

素因数分解:

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

素因数の和:81

約数の個数: 72

約数和(自身を含む): 5690880

約数和(自身を除く): 2833641

約数列:

[1, 3, 7, 9, 11, 19, 21, 31, 33, 49, 57, 63, 77, 93, 99, 133, 147, 171, 209, 217, 231, 279, 341, 399, 441, 539, 589, 627, 651, 693, 931, 1023, 1197, 1463, 1519, 1617, 1767, 1881, 1953, 2387, 2793, 3069, 4123, 4389, 4557, 4851, 5301, 6479, 7161, 8379, 10241, 12369, 13167, 13671, 16709, 19437, 21483, 28861, 30723, 37107, 45353, 50127, 58311, 86583, 92169, 136059, 150381, 259749, 317471, 408177, 952413, 2857239]

約数ペア:

[(1, 2857239), (3, 952413), (7, 408177), (9, 317471), (11, 259749), (19, 150381), (21, 136059), (31, 92169), (33, 86583), (49, 58311), (57, 50127), (63, 45353), (77, 37107), (93, 30723), (99, 28861), (133, 21483), (147, 19437), (171, 16709), (209, 13671), (217, 13167), (231, 12369), (279, 10241), (341, 8379), (399, 7161), (441, 6479), (539, 5301), (589, 4851), (627, 4557), (651, 4389), (693, 4123), (931, 3069), (1023, 2793), (1197, 2387), (1463, 1953), (1519, 1881), (1617, 1767)]