21702681

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1$

素因数の和:124

約数の個数: 96

約数和(自身を含む): 44092160

約数和(自身を除く): 22389479

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 39, 63, 73, 77, 91, 99, 117, 121, 143, 189, 219, 231, 273, 297, 351, 363, 429, 511, 657, 693, 803, 819, 847, 949, 1001, 1089, 1287, 1533, 1573, 1971, 2079, 2409, 2457, 2541, 2847, 3003, 3267, 3861, 4599, 4719, 5621, 6643, 7227, 7623, 8541, 8833, 9009, 10439, 11011, 13797, 14157, 16863, 19929, 21681, 22869, 25623, 26499, 27027, 31317, 33033, 42471, 50589, 59787, 61831, 73073, 79497, 93951, 99099, 114829, 151767, 179361, 185493, 219219, 238491, 281853, 297297, 344487, 556479, 657657, 803803, 1033461, 1669437, 1972971, 2411409, 3100383, 7234227, 21702681]

約数ペア:

[(1, 21702681), (3, 7234227), (7, 3100383), (9, 2411409), (11, 1972971), (13, 1669437), (21, 1033461), (27, 803803), (33, 657657), (39, 556479), (63, 344487), (73, 297297), (77, 281853), (91, 238491), (99, 219219), (117, 185493), (121, 179361), (143, 151767), (189, 114829), (219, 99099), (231, 93951), (273, 79497), (297, 73073), (351, 61831), (363, 59787), (429, 50589), (511, 42471), (657, 33033), (693, 31317), (803, 27027), (819, 26499), (847, 25623), (949, 22869), (1001, 21681), (1089, 19929), (1287, 16863), (1533, 14157), (1573, 13797), (1971, 11011), (2079, 10439), (2409, 9009), (2457, 8833), (2541, 8541), (2847, 7623), (3003, 7227), (3267, 6643), (3861, 5621), (4599, 4719)]