257629617

素因数分解:

$3^2\times 7^1\times {\mathrm{607}}^1\times {\mathrm{6737}}^1$

素因数の和:7357

約数の個数: 24

約数和(自身を含む): 426057216

約数和(自身を除く): 168427599

約数列:

[1, 3, 7, 9, 21, 63, 607, 1821, 4249, 5463, 6737, 12747, 20211, 38241, 47159, 60633, 141477, 424431, 4089359, 12268077, 28625513, 36804231, 85876539, 257629617]

約数ペア:

[(1, 257629617), (3, 85876539), (7, 36804231), (9, 28625513), (21, 12268077), (63, 4089359), (607, 424431), (1821, 141477), (4249, 60633), (5463, 47159), (6737, 38241), (12747, 20211)]