21020581494

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^4\times {\mathrm{31}}^2\times {\mathrm{83}}^1$

素因数の和:197

約数の個数: 180

約数和(自身を含む): 52390660140

約数和(自身を除く): 31370078646

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 31, 33, 62, 66, 83, 93, 99, 121, 166, 186, 198, 242, 249, 279, 341, 363, 498, 558, 682, 726, 747, 913, 961, 1023, 1089, 1331, 1494, 1826, 1922, 2046, 2178, 2573, 2662, 2739, 2883, 3069, 3751, 3993, 5146, 5478, 5766, 6138, 7502, 7719, 7986, 8217, 8649, 10043, 10571, 11253, 11979, 14641, 15438, 16434, 17298, 20086, 21142, 22506, 23157, 23958, 28303, 29282, 30129, 31713, 33759, 41261, 43923, 46314, 56606, 60258, 63426, 67518, 79763, 82522, 84909, 87846, 90387, 95139, 110473, 116281, 123783, 131769, 159526, 169818, 180774, 190278, 220946, 232562, 239289, 247566, 254727, 263538, 311333, 331419, 348843, 371349, 453871, 478578, 509454, 622666, 662838, 697686, 717867, 742698, 877393, 907742, 933999, 994257, 1046529, 1215203, 1279091, 1361613, 1435734, 1754786, 1867998, 1988514, 2093058, 2430406, 2558182, 2632179, 2723226, 2801997, 3424663, 3645609, 3837273, 4084839, 5264358, 5603994, 6849326, 7291218, 7674546, 7896537, 8169678, 9651323, 10273989, 10936827, 11511819, 14070001, 15793074, 19302646, 20547978, 21873654, 23023638, 28140002, 28953969, 30821967, 37671293, 42210003, 57907938, 61643934, 75342586, 84420006, 86861907, 106164553, 113013879, 126630009, 173723814, 212329106, 226027758, 253260018, 318493659, 339041637, 636987318, 678083274, 955480977, 1167810083, 1910961954, 2335620166, 3503430249, 7006860498, 10510290747, 21020581494]

約数ペア:

[(1, 21020581494), (2, 10510290747), (3, 7006860498), (6, 3503430249), (9, 2335620166), (11, 1910961954), (18, 1167810083), (22, 955480977), (31, 678083274), (33, 636987318), (62, 339041637), (66, 318493659), (83, 253260018), (93, 226027758), (99, 212329106), (121, 173723814), (166, 126630009), (186, 113013879), (198, 106164553), (242, 86861907), (249, 84420006), (279, 75342586), (341, 61643934), (363, 57907938), (498, 42210003), (558, 37671293), (682, 30821967), (726, 28953969), (747, 28140002), (913, 23023638), (961, 21873654), (1023, 20547978), (1089, 19302646), (1331, 15793074), (1494, 14070001), (1826, 11511819), (1922, 10936827), (2046, 10273989), (2178, 9651323), (2573, 8169678), (2662, 7896537), (2739, 7674546), (2883, 7291218), (3069, 6849326), (3751, 5603994), (3993, 5264358), (5146, 4084839), (5478, 3837273), (5766, 3645609), (6138, 3424663), (7502, 2801997), (7719, 2723226), (7986, 2632179), (8217, 2558182), (8649, 2430406), (10043, 2093058), (10571, 1988514), (11253, 1867998), (11979, 1754786), (14641, 1435734), (15438, 1361613), (16434, 1279091), (17298, 1215203), (20086, 1046529), (21142, 994257), (22506, 933999), (23157, 907742), (23958, 877393), (28303, 742698), (29282, 717867), (30129, 697686), (31713, 662838), (33759, 622666), (41261, 509454), (43923, 478578), (46314, 453871), (56606, 371349), (60258, 348843), (63426, 331419), (67518, 311333), (79763, 263538), (82522, 254727), (84909, 247566), (87846, 239289), (90387, 232562), (95139, 220946), (110473, 190278), (116281, 180774), (123783, 169818), (131769, 159526)]