20256478

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{12613}}^1$

素因数の和:12699

約数の個数: 16

約数和(自身を含む): 33603696

約数和(自身を除く): 13347218

約数列:

[1, 2, 11, 22, 73, 146, 803, 1606, 12613, 25226, 138743, 277486, 920749, 1841498, 10128239, 20256478]

約数ペア:

[(1, 20256478), (2, 10128239), (11, 1841498), (22, 920749), (73, 277486), (146, 138743), (803, 25226), (1606, 12613)]