21158874

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 30681126

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 99, 179, 198, 199, 297, 358, 398, 537, 594, 597, 1074, 1194, 1611, 1791, 1969, 2189, 3222, 3582, 3938, 4378, 4833, 5373, 5907, 6567, 9666, 10746, 11814, 13134, 17721, 19701, 35442, 35621, 39402, 53163, 59103, 71242, 106326, 106863, 118206, 213726, 320589, 391831, 641178, 783662, 961767, 1175493, 1923534, 2350986, 3526479, 7052958, 10579437, 21158874]

約数ペア:

[(1, 21158874), (2, 10579437), (3, 7052958), (6, 3526479), (9, 2350986), (11, 1923534), (18, 1175493), (22, 961767), (27, 783662), (33, 641178), (54, 391831), (66, 320589), (99, 213726), (179, 118206), (198, 106863), (199, 106326), (297, 71242), (358, 59103), (398, 53163), (537, 39402), (594, 35621), (597, 35442), (1074, 19701), (1194, 17721), (1611, 13134), (1791, 11814), (1969, 10746), (2189, 9666), (3222, 6567), (3582, 5907), (3938, 5373), (4378, 4833)]