21395286

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 52416000

約数和(自身を除く): 31020714

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 99, 181, 198, 199, 297, 362, 398, 543, 594, 597, 1086, 1194, 1629, 1791, 1991, 2189, 3258, 3582, 3982, 4378, 4887, 5373, 5973, 6567, 9774, 10746, 11946, 13134, 17919, 19701, 35838, 36019, 39402, 53757, 59103, 72038, 107514, 108057, 118206, 216114, 324171, 396209, 648342, 792418, 972513, 1188627, 1945026, 2377254, 3565881, 7131762, 10697643, 21395286]

約数ペア:

[(1, 21395286), (2, 10697643), (3, 7131762), (6, 3565881), (9, 2377254), (11, 1945026), (18, 1188627), (22, 972513), (27, 792418), (33, 648342), (54, 396209), (66, 324171), (99, 216114), (181, 118206), (198, 108057), (199, 107514), (297, 72038), (362, 59103), (398, 53757), (543, 39402), (594, 36019), (597, 35838), (1086, 19701), (1194, 17919), (1629, 13134), (1791, 11946), (1991, 10746), (2189, 9774), (3258, 6567), (3582, 5973), (3982, 5373), (4378, 4887)]