20990954

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 35154000

約数和(自身を除く): 14163046

約数列:

[1, 2, 17, 29, 34, 58, 61, 122, 349, 493, 698, 986, 1037, 1769, 2074, 3538, 5933, 10121, 11866, 20242, 21289, 30073, 42578, 60146, 172057, 344114, 361913, 617381, 723826, 1234762, 10495477, 20990954]

約数ペア:

[(1, 20990954), (2, 10495477), (17, 1234762), (29, 723826), (34, 617381), (58, 361913), (61, 344114), (122, 172057), (349, 60146), (493, 42578), (698, 30073), (986, 21289), (1037, 20242), (1769, 11866), (2074, 10121), (3538, 5933)]