280135317

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{12007}}^1$

素因数の和:12129

約数の個数: 32

約数和(自身を含む): 470329344

約数和(自身を除く): 190194027

約数列:

[1, 3, 7, 11, 21, 33, 77, 101, 231, 303, 707, 1111, 2121, 3333, 7777, 12007, 23331, 36021, 84049, 132077, 252147, 396231, 924539, 1212707, 2773617, 3638121, 8488949, 13339777, 25466847, 40019331, 93378439, 280135317]

約数ペア:

[(1, 280135317), (3, 93378439), (7, 40019331), (11, 25466847), (21, 13339777), (33, 8488949), (77, 3638121), (101, 2773617), (231, 1212707), (303, 924539), (707, 396231), (1111, 252147), (2121, 132077), (3333, 84049), (7777, 36021), (12007, 23331)]