28128177

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1097}}^1$

素因数の和:1158

約数の個数: 48

約数和(自身を含む): 52071552

約数和(自身を除く): 23943375

約数列:

[1, 3, 7, 9, 11, 21, 33, 37, 63, 77, 99, 111, 231, 259, 333, 407, 693, 777, 1097, 1221, 2331, 2849, 3291, 3663, 7679, 8547, 9873, 12067, 23037, 25641, 36201, 40589, 69111, 84469, 108603, 121767, 253407, 284123, 365301, 446479, 760221, 852369, 1339437, 2557107, 3125353, 4018311, 9376059, 28128177]

約数ペア:

[(1, 28128177), (3, 9376059), (7, 4018311), (9, 3125353), (11, 2557107), (21, 1339437), (33, 852369), (37, 760221), (63, 446479), (77, 365301), (99, 284123), (111, 253407), (231, 121767), (259, 108603), (333, 84469), (407, 69111), (693, 40589), (777, 36201), (1097, 25641), (1221, 23037), (2331, 12067), (2849, 9873), (3291, 8547), (3663, 7679)]