20804973147

素因数分解:

$3^3\times 7^1\times {\mathrm{739}}^1\times {\mathrm{148957}}^1$

素因数の和:149712

約数の個数: 32

約数和(自身を含む): 35273254400

約数和(自身を除く): 14468281253

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 739, 2217, 5173, 6651, 15519, 19953, 46557, 139671, 148957, 446871, 1042699, 1340613, 3128097, 4021839, 9384291, 28152873, 110079223, 330237669, 770554561, 990713007, 2311663683, 2972139021, 6934991049, 20804973147]

約数ペア:

[(1, 20804973147), (3, 6934991049), (7, 2972139021), (9, 2311663683), (21, 990713007), (27, 770554561), (63, 330237669), (189, 110079223), (739, 28152873), (2217, 9384291), (5173, 4021839), (6651, 3128097), (15519, 1340613), (19953, 1042699), (46557, 446871), (139671, 148957)]