205874571

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{1523}}^1$

素因数の和:1731

約数の個数: 32

約数和(自身を含む): 323624448

約数和(自身を除く): 117749877

約数列:

[1, 3, 7, 21, 41, 123, 157, 287, 471, 861, 1099, 1523, 3297, 4569, 6437, 10661, 19311, 31983, 45059, 62443, 135177, 187329, 239111, 437101, 717333, 1311303, 1673777, 5021331, 9803551, 29410653, 68624857, 205874571]

約数ペア:

[(1, 205874571), (3, 68624857), (7, 29410653), (21, 9803551), (41, 5021331), (123, 1673777), (157, 1311303), (287, 717333), (471, 437101), (861, 239111), (1099, 187329), (1523, 135177), (3297, 62443), (4569, 45059), (6437, 31983), (10661, 19311)]