201990512899

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{317}}^1\times {\mathrm{18757}}^1$

素因数の和:19315

約数の個数: 32

約数和(自身を含む): 242801150976

約数和(自身を除く): 40810638077

約数列:

[1, 7, 23, 161, 211, 317, 1477, 2219, 4853, 7291, 18757, 33971, 51037, 66887, 131299, 431411, 468209, 1538401, 3019877, 3957727, 5945969, 10768807, 27704089, 41621783, 91027721, 136757287, 637194047, 957301009, 1254599459, 8782196213, 28855787557, 201990512899]

約数ペア:

[(1, 201990512899), (7, 28855787557), (23, 8782196213), (161, 1254599459), (211, 957301009), (317, 637194047), (1477, 136757287), (2219, 91027721), (4853, 41621783), (7291, 27704089), (18757, 10768807), (33971, 5945969), (51037, 3957727), (66887, 3019877), (131299, 1538401), (431411, 468209)]