21490149148

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{571}}^1\times {\mathrm{1511}}^1$

素因数の和:2578

約数の個数: 48

約数和(自身を含む): 40683202560

約数和(自身を除く): 19193053412

約数列:

[1, 2, 4, 13, 26, 52, 479, 571, 958, 1142, 1511, 1916, 2284, 3022, 6044, 6227, 7423, 12454, 14846, 19643, 24908, 29692, 39286, 78572, 273509, 547018, 723769, 862781, 1094036, 1447538, 1725562, 2895076, 3451124, 3555617, 7111234, 9408997, 11216153, 14222468, 18817994, 22432306, 37635988, 44864612, 413272099, 826544198, 1653088396, 5372537287, 10745074574, 21490149148]

約数ペア:

[(1, 21490149148), (2, 10745074574), (4, 5372537287), (13, 1653088396), (26, 826544198), (52, 413272099), (479, 44864612), (571, 37635988), (958, 22432306), (1142, 18817994), (1511, 14222468), (1916, 11216153), (2284, 9408997), (3022, 7111234), (6044, 3555617), (6227, 3451124), (7423, 2895076), (12454, 1725562), (14846, 1447538), (19643, 1094036), (24908, 862781), (29692, 723769), (39286, 547018), (78572, 273509)]