209688479

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4457}}^1$

素因数の和:4535

約数の個数: 32

約数和(自身を含む): 287594496

約数和(自身を除く): 77906017

約数列:

[1, 7, 11, 13, 47, 77, 91, 143, 329, 517, 611, 1001, 3619, 4277, 4457, 6721, 31199, 47047, 49027, 57941, 209479, 343189, 405587, 637351, 1466353, 2304269, 2723227, 4461457, 16129883, 19062589, 29955497, 209688479]

約数ペア:

[(1, 209688479), (7, 29955497), (11, 19062589), (13, 16129883), (47, 4461457), (77, 2723227), (91, 2304269), (143, 1466353), (329, 637351), (517, 405587), (611, 343189), (1001, 209479), (3619, 57941), (4277, 49027), (4457, 47047), (6721, 31199)]