2660885721

素因数分解:

$3^9\times {\mathrm{13}}^1\times {\mathrm{10399}}^1$

素因数の和:10439

約数の個数: 40

約数和(自身を含む): 4298694400

約数和(自身を除く): 1637808679

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 2187, 3159, 6561, 9477, 10399, 19683, 28431, 31197, 85293, 93591, 135187, 255879, 280773, 405561, 842319, 1216683, 2526957, 3650049, 7580871, 10950147, 22742613, 32850441, 68227839, 98551323, 204683517, 295653969, 886961907, 2660885721]

約数ペア:

[(1, 2660885721), (3, 886961907), (9, 295653969), (13, 204683517), (27, 98551323), (39, 68227839), (81, 32850441), (117, 22742613), (243, 10950147), (351, 7580871), (729, 3650049), (1053, 2526957), (2187, 1216683), (3159, 842319), (6561, 405561), (9477, 280773), (10399, 255879), (19683, 135187), (28431, 93591), (31197, 85293)]