20170710783

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{947}}^1$

素因数の和:1437

約数の個数: 72

約数和(自身を含む): 32689163520

約数和(自身を除く): 12518452737

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 289, 323, 431, 867, 947, 969, 1293, 2601, 2841, 2907, 3879, 5491, 7327, 8189, 8523, 16099, 16473, 17993, 21981, 24567, 48297, 49419, 53979, 65943, 73701, 124559, 139213, 144891, 161937, 273683, 305881, 373677, 408157, 417639, 821049, 917643, 1121031, 1224471, 1252917, 2366621, 2463147, 2752929, 3673413, 5199977, 6938669, 7099863, 7754983, 15599931, 20816007, 21299589, 23264949, 46799793, 62448021, 69794847, 117957373, 131834711, 353872119, 395504133, 1061616357, 1186512399, 2241190087, 6723570261, 20170710783]

約数ペア:

[(1, 20170710783), (3, 6723570261), (9, 2241190087), (17, 1186512399), (19, 1061616357), (51, 395504133), (57, 353872119), (153, 131834711), (171, 117957373), (289, 69794847), (323, 62448021), (431, 46799793), (867, 23264949), (947, 21299589), (969, 20816007), (1293, 15599931), (2601, 7754983), (2841, 7099863), (2907, 6938669), (3879, 5199977), (5491, 3673413), (7327, 2752929), (8189, 2463147), (8523, 2366621), (16099, 1252917), (16473, 1224471), (17993, 1121031), (21981, 917643), (24567, 821049), (48297, 417639), (49419, 408157), (53979, 373677), (65943, 305881), (73701, 273683), (124559, 161937), (139213, 144891)]