211682009

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{433}}^1\times {\mathrm{907}}^1$

素因数の和:1365

約数の個数: 24

約数和(自身を含む): 269545248

約数和(自身を除く): 57863239

約数列:

[1, 7, 11, 49, 77, 433, 539, 907, 3031, 4763, 6349, 9977, 21217, 33341, 44443, 69839, 233387, 392731, 488873, 2749117, 4320041, 19243819, 30240287, 211682009]

約数ペア:

[(1, 211682009), (7, 30240287), (11, 19243819), (49, 4320041), (77, 2749117), (433, 488873), (539, 392731), (907, 233387), (3031, 69839), (4763, 44443), (6349, 33341), (9977, 21217)]