20341881

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2503}}^1$

素因数の和:2562

約数の個数: 32

約数和(自身を含む): 35256320

約数和(自身を除く): 14914439

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2503, 2709, 7509, 8127, 17521, 22527, 52563, 67581, 107629, 157689, 322887, 473067, 753403, 968661, 2260209, 2905983, 6780627, 20341881]

約数ペア:

[(1, 20341881), (3, 6780627), (7, 2905983), (9, 2260209), (21, 968661), (27, 753403), (43, 473067), (63, 322887), (129, 157689), (189, 107629), (301, 67581), (387, 52563), (903, 22527), (1161, 17521), (2503, 8127), (2709, 7509)]