128551479

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1\times {\mathrm{563}}^1$

素因数の和:787

約数の個数: 32

約数和(自身を含む): 200116224

約数和(自身を除く): 71564745

約数列:

[1, 3, 7, 21, 83, 131, 249, 393, 563, 581, 917, 1689, 1743, 2751, 3941, 10873, 11823, 32619, 46729, 73753, 76111, 140187, 221259, 228333, 327103, 516271, 981309, 1548813, 6121499, 18364497, 42850493, 128551479]

約数ペア:

[(1, 128551479), (3, 42850493), (7, 18364497), (21, 6121499), (83, 1548813), (131, 981309), (249, 516271), (393, 327103), (563, 228333), (581, 221259), (917, 140187), (1689, 76111), (1743, 73753), (2751, 46729), (3941, 32619), (10873, 11823)]