17779972

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1759}}^1$

素因数の和:1808

約数の個数: 36

約数和(自身を含む): 37551360

約数和(自身を除く): 19771388

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1444, 1759, 2527, 3518, 5054, 7036, 10108, 12313, 24626, 33421, 49252, 66842, 133684, 233947, 467894, 634999, 935788, 1269998, 2539996, 4444993, 8889986, 17779972]

約数ペア:

[(1, 17779972), (2, 8889986), (4, 4444993), (7, 2539996), (14, 1269998), (19, 935788), (28, 634999), (38, 467894), (76, 233947), (133, 133684), (266, 66842), (361, 49252), (532, 33421), (722, 24626), (1444, 12313), (1759, 10108), (2527, 7036), (3518, 5054)]