20940269

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{953}}^1$

素因数の和:1076

約数の個数: 16

約数和(自身を含む): 24849792

約数和(自身を除く): 3909523

約数列:

[1, 7, 43, 73, 301, 511, 953, 3139, 6671, 21973, 40979, 69569, 286853, 486983, 2991467, 20940269]

約数ペア:

[(1, 20940269), (7, 2991467), (43, 486983), (73, 286853), (301, 69569), (511, 40979), (953, 21973), (3139, 6671)]