18887349

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 10143051

約数列:

[1, 3, 13, 19, 39, 57, 71, 213, 247, 359, 741, 923, 1077, 1349, 2769, 4047, 4667, 6821, 14001, 17537, 20463, 25489, 52611, 76467, 88673, 266019, 331357, 484291, 994071, 1452873, 6295783, 18887349]

約数ペア:

[(1, 18887349), (3, 6295783), (13, 1452873), (19, 994071), (39, 484291), (57, 331357), (71, 266019), (213, 88673), (247, 76467), (359, 52611), (741, 25489), (923, 20463), (1077, 17537), (1349, 14001), (2769, 6821), (4047, 4667)]