28880943

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:181

約数の個数: 64

約数和(自身を含む): 51609600

約数和(自身を除く): 22728657

約数列:

[1, 3, 7, 13, 17, 21, 39, 49, 51, 91, 119, 127, 147, 221, 273, 343, 357, 381, 637, 663, 833, 889, 1029, 1547, 1651, 1911, 2159, 2499, 2667, 4459, 4641, 4953, 5831, 6223, 6477, 10829, 11557, 13377, 15113, 17493, 18669, 28067, 32487, 34671, 43561, 45339, 75803, 80899, 84201, 105791, 130683, 196469, 227409, 242697, 317373, 566293, 589407, 740537, 1375283, 1698879, 2221611, 4125849, 9626981, 28880943]

約数ペア:

[(1, 28880943), (3, 9626981), (7, 4125849), (13, 2221611), (17, 1698879), (21, 1375283), (39, 740537), (49, 589407), (51, 566293), (91, 317373), (119, 242697), (127, 227409), (147, 196469), (221, 130683), (273, 105791), (343, 84201), (357, 80899), (381, 75803), (637, 45339), (663, 43561), (833, 34671), (889, 32487), (1029, 28067), (1547, 18669), (1651, 17493), (1911, 15113), (2159, 13377), (2499, 11557), (2667, 10829), (4459, 6477), (4641, 6223), (4953, 5831)]