21808314

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:97

約数の個数: 144

約数和(自身を含む): 59754240

約数和(自身を除く): 37945926

約数列:

[1, 2, 3, 6, 9, 11, 17, 18, 19, 22, 31, 33, 34, 38, 51, 57, 62, 66, 93, 99, 102, 114, 121, 153, 171, 186, 187, 198, 209, 242, 279, 306, 323, 341, 342, 363, 374, 418, 527, 558, 561, 589, 627, 646, 682, 726, 969, 1023, 1054, 1089, 1122, 1178, 1254, 1581, 1683, 1767, 1881, 1938, 2046, 2057, 2178, 2299, 2907, 3069, 3162, 3366, 3534, 3553, 3751, 3762, 4114, 4598, 4743, 5301, 5797, 5814, 6138, 6171, 6479, 6897, 7106, 7502, 9486, 10013, 10602, 10659, 11253, 11594, 12342, 12958, 13794, 17391, 18513, 19437, 20026, 20691, 21318, 22506, 30039, 31977, 33759, 34782, 37026, 38874, 39083, 41382, 52173, 58311, 60078, 63767, 63954, 67518, 71269, 78166, 90117, 104346, 110143, 116622, 117249, 127534, 142538, 180234, 191301, 213807, 220286, 234498, 330429, 351747, 382602, 427614, 573903, 641421, 660858, 703494, 991287, 1147806, 1211573, 1282842, 1982574, 2423146, 3634719, 7269438, 10904157, 21808314]

約数ペア:

[(1, 21808314), (2, 10904157), (3, 7269438), (6, 3634719), (9, 2423146), (11, 1982574), (17, 1282842), (18, 1211573), (19, 1147806), (22, 991287), (31, 703494), (33, 660858), (34, 641421), (38, 573903), (51, 427614), (57, 382602), (62, 351747), (66, 330429), (93, 234498), (99, 220286), (102, 213807), (114, 191301), (121, 180234), (153, 142538), (171, 127534), (186, 117249), (187, 116622), (198, 110143), (209, 104346), (242, 90117), (279, 78166), (306, 71269), (323, 67518), (341, 63954), (342, 63767), (363, 60078), (374, 58311), (418, 52173), (527, 41382), (558, 39083), (561, 38874), (589, 37026), (627, 34782), (646, 33759), (682, 31977), (726, 30039), (969, 22506), (1023, 21318), (1054, 20691), (1089, 20026), (1122, 19437), (1178, 18513), (1254, 17391), (1581, 13794), (1683, 12958), (1767, 12342), (1881, 11594), (1938, 11253), (2046, 10659), (2057, 10602), (2178, 10013), (2299, 9486), (2907, 7502), (3069, 7106), (3162, 6897), (3366, 6479), (3534, 6171), (3553, 6138), (3751, 5814), (3762, 5797), (4114, 5301), (4598, 4743)]