289881207

素因数分解:

$3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19919}}^1$

素因数の和:19953

約数の個数: 48

約数和(自身を含む): 545011200

約数和(自身を除く): 255129993

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 99, 147, 189, 231, 297, 441, 539, 693, 1323, 1617, 2079, 4851, 14553, 19919, 59757, 139433, 179271, 219109, 418299, 537813, 657327, 976031, 1254897, 1533763, 1971981, 2928093, 3764691, 4601289, 5915943, 8784279, 10736341, 13803867, 26352837, 32209023, 41411601, 96627069, 289881207]

約数ペア:

[(1, 289881207), (3, 96627069), (7, 41411601), (9, 32209023), (11, 26352837), (21, 13803867), (27, 10736341), (33, 8784279), (49, 5915943), (63, 4601289), (77, 3764691), (99, 2928093), (147, 1971981), (189, 1533763), (231, 1254897), (297, 976031), (441, 657327), (539, 537813), (693, 418299), (1323, 219109), (1617, 179271), (2079, 139433), (4851, 59757), (14553, 19919)]