686138739

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{8287}}^1$

素因数の和:8507

約数の個数: 32

約数和(自身を含む): 1080489984

約数和(自身を除く): 394351245

約数列:

[1, 3, 11, 13, 33, 39, 143, 193, 429, 579, 2123, 2509, 6369, 7527, 8287, 24861, 27599, 82797, 91157, 107731, 273471, 323193, 1185041, 1599391, 3555123, 4798173, 17593301, 20792083, 52779903, 62376249, 228712913, 686138739]

約数ペア:

[(1, 686138739), (3, 228712913), (11, 62376249), (13, 52779903), (33, 20792083), (39, 17593301), (143, 4798173), (193, 3555123), (429, 1599391), (579, 1185041), (2123, 323193), (2509, 273471), (6369, 107731), (7527, 91157), (8287, 82797), (24861, 27599)]