71840979

素因数分解:

$3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 127303680

約数和(自身を除く): 55462701

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 73, 123, 127, 189, 219, 287, 369, 381, 511, 657, 861, 889, 1107, 1143, 1533, 1971, 2583, 2667, 2993, 3429, 4599, 5207, 7749, 8001, 8979, 9271, 13797, 15621, 20951, 24003, 26937, 27813, 36449, 46863, 62853, 64897, 80811, 83439, 109347, 140589, 188559, 194691, 250317, 328041, 380111, 565677, 584073, 984123, 1140333, 1752219, 2660777, 3420999, 7982331, 10262997, 23946993, 71840979]

約数ペア:

[(1, 71840979), (3, 23946993), (7, 10262997), (9, 7982331), (21, 3420999), (27, 2660777), (41, 1752219), (63, 1140333), (73, 984123), (123, 584073), (127, 565677), (189, 380111), (219, 328041), (287, 250317), (369, 194691), (381, 188559), (511, 140589), (657, 109347), (861, 83439), (889, 80811), (1107, 64897), (1143, 62853), (1533, 46863), (1971, 36449), (2583, 27813), (2667, 26937), (2993, 24003), (3429, 20951), (4599, 15621), (5207, 13797), (7749, 9271), (8001, 8979)]