20551487

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 24399648

約数和(自身を除く): 3848161

約数列:

[1, 11, 17, 97, 103, 121, 187, 1067, 1133, 1649, 1751, 2057, 9991, 11737, 12463, 18139, 19261, 109901, 169847, 199529, 211871, 1208911, 1868317, 20551487]

約数ペア:

[(1, 20551487), (11, 1868317), (17, 1208911), (97, 211871), (103, 199529), (121, 169847), (187, 109901), (1067, 19261), (1133, 18139), (1649, 12463), (1751, 11737), (2057, 9991)]