19937258

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{1627}}^1$

素因数の和:2197

約数の個数: 16

約数和(自身を含む): 32703264

約数和(自身を除く): 12766006

約数列:

[1, 2, 11, 22, 557, 1114, 1627, 3254, 6127, 12254, 17897, 35794, 906239, 1812478, 9968629, 19937258]

約数ペア:

[(1, 19937258), (2, 9968629), (11, 1812478), (22, 906239), (557, 35794), (1114, 17897), (1627, 12254), (3254, 6127)]