217231729

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{463}}^1$

素因数の和:697

約数の個数: 32

約数和(自身を含む): 272208384

約数和(自身を除く): 54976655

約数列:

[1, 11, 13, 17, 143, 187, 193, 221, 463, 2123, 2431, 2509, 3281, 5093, 6019, 7871, 27599, 36091, 42653, 66209, 86581, 89359, 102323, 469183, 982949, 1125553, 1161667, 1519103, 12778337, 16710133, 19748339, 217231729]

約数ペア:

[(1, 217231729), (11, 19748339), (13, 16710133), (17, 12778337), (143, 1519103), (187, 1161667), (193, 1125553), (221, 982949), (463, 469183), (2123, 102323), (2431, 89359), (2509, 86581), (3281, 66209), (5093, 42653), (6019, 36091), (7871, 27599)]