688889421

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:248

約数の個数: 96

約数和(自身を含む): 1188700800

約数和(自身を除く): 499811379

約数列:

[1, 3, 9, 11, 27, 33, 37, 41, 99, 111, 121, 123, 139, 297, 333, 363, 369, 407, 417, 451, 999, 1089, 1107, 1221, 1251, 1353, 1517, 1529, 3267, 3663, 3753, 4059, 4477, 4551, 4587, 4961, 5143, 5699, 10989, 12177, 13431, 13653, 13761, 14883, 15429, 16687, 16819, 17097, 40293, 40959, 41283, 44649, 46287, 50061, 50457, 51291, 56573, 62689, 120879, 133947, 138861, 150183, 151371, 153873, 169719, 183557, 188067, 210863, 450549, 454113, 509157, 550671, 564201, 622303, 632589, 689579, 1527471, 1652013, 1692603, 1866909, 1897767, 2068737, 2319493, 4956039, 5600727, 5693301, 6206211, 6958479, 16802181, 18618633, 20875437, 25514423, 62626311, 76543269, 229629807, 688889421]

約数ペア:

[(1, 688889421), (3, 229629807), (9, 76543269), (11, 62626311), (27, 25514423), (33, 20875437), (37, 18618633), (41, 16802181), (99, 6958479), (111, 6206211), (121, 5693301), (123, 5600727), (139, 4956039), (297, 2319493), (333, 2068737), (363, 1897767), (369, 1866909), (407, 1692603), (417, 1652013), (451, 1527471), (999, 689579), (1089, 632589), (1107, 622303), (1221, 564201), (1251, 550671), (1353, 509157), (1517, 454113), (1529, 450549), (3267, 210863), (3663, 188067), (3753, 183557), (4059, 169719), (4477, 153873), (4551, 151371), (4587, 150183), (4961, 138861), (5143, 133947), (5699, 120879), (10989, 62689), (12177, 56573), (13431, 51291), (13653, 50457), (13761, 50061), (14883, 46287), (15429, 44649), (16687, 41283), (16819, 40959), (17097, 40293)]