208889197

素因数分解:

${\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1597}}^1$

素因数の和:1689

約数の個数: 24

約数和(自身を含む): 244839168

約数和(自身を除く): 35949971

約数列:

[1, 11, 23, 47, 121, 253, 517, 1081, 1597, 2783, 5687, 11891, 17567, 36731, 75059, 130801, 193237, 404041, 825649, 1726357, 4444451, 9082139, 18989927, 208889197]

約数ペア:

[(1, 208889197), (11, 18989927), (23, 9082139), (47, 4444451), (121, 1726357), (253, 825649), (517, 404041), (1081, 193237), (1597, 130801), (2783, 75059), (5687, 36731), (11891, 17567)]