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On perfect and near-perfect numbers |
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| Authors: | Paul Pollack Vladimir Shevelev |
| Institution: | 1. University of British Columbia, Department of Mathematics, 1984 Mathematics Road, Vancouver, BC V6T 1Z2, Canada;2. Simon Fraser University, Department of Mathematics, Burnaby, British Columbia V5A 1S6, Canada;3. Ben-Gurion University of the Negev, Department of Mathematics, Beer-Sheva 84105, Israel |
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