199908247

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{349}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 257241600

約数和(自身を除く): 57333353

約数列:

[1, 7, 11, 43, 77, 173, 301, 349, 473, 1211, 1903, 2443, 3311, 3839, 7439, 13321, 15007, 26873, 52073, 60377, 81829, 105049, 165077, 422639, 572803, 664147, 1155539, 2596211, 4649029, 18173477, 28558321, 199908247]

約数ペア:

[(1, 199908247), (7, 28558321), (11, 18173477), (43, 4649029), (77, 2596211), (173, 1155539), (301, 664147), (349, 572803), (473, 422639), (1211, 165077), (1903, 105049), (2443, 81829), (3311, 60377), (3839, 52073), (7439, 26873), (13321, 15007)]