28164807

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{233}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 47305440

約数和(自身を除く): 19140633

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 121, 233, 297, 333, 363, 407, 699, 999, 1089, 1221, 2097, 2563, 3267, 3663, 4477, 6291, 7689, 8621, 10989, 13431, 23067, 25863, 28193, 40293, 69201, 77589, 84579, 94831, 120879, 232767, 253737, 284493, 761211, 853479, 1043141, 2560437, 3129423, 9388269, 28164807]

約数ペア:

[(1, 28164807), (3, 9388269), (9, 3129423), (11, 2560437), (27, 1043141), (33, 853479), (37, 761211), (99, 284493), (111, 253737), (121, 232767), (233, 120879), (297, 94831), (333, 84579), (363, 77589), (407, 69201), (699, 40293), (999, 28193), (1089, 25863), (1221, 23067), (2097, 13431), (2563, 10989), (3267, 8621), (3663, 7689), (4477, 6291)]