20025873

素因数分解:

$3^5\times 7^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 35025536

約数和(自身を除く): 14999663

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 81, 183, 189, 193, 243, 427, 549, 567, 579, 1281, 1351, 1647, 1701, 1737, 3843, 4053, 4941, 5211, 11529, 11773, 12159, 14823, 15633, 34587, 35319, 36477, 46899, 82411, 103761, 105957, 109431, 247233, 317871, 328293, 741699, 953613, 2225097, 2860839, 6675291, 20025873]

約数ペア:

[(1, 20025873), (3, 6675291), (7, 2860839), (9, 2225097), (21, 953613), (27, 741699), (61, 328293), (63, 317871), (81, 247233), (183, 109431), (189, 105957), (193, 103761), (243, 82411), (427, 46899), (549, 36477), (567, 35319), (579, 34587), (1281, 15633), (1351, 14823), (1647, 12159), (1701, 11773), (1737, 11529), (3843, 5211), (4053, 4941)]