19684159

素因数分解:

${\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{643}}^1$

素因数の和:699

約数の個数: 16

約数和(自身を含む): 22627584

約数和(自身を除く): 2943425

約数列:

[1, 11, 23, 121, 253, 643, 1331, 2783, 7073, 14789, 30613, 77803, 162679, 855833, 1789469, 19684159]

約数ペア:

[(1, 19684159), (11, 1789469), (23, 855833), (121, 162679), (253, 77803), (643, 30613), (1331, 14789), (2783, 7073)]