208428913

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{4643}}^1$

素因数の和:4725

約数の個数: 24

約数和(自身を含む): 266825664

約数和(自身を除く): 58396751

約数列:

[1, 7, 11, 53, 77, 121, 371, 583, 847, 4081, 4643, 6413, 32501, 44891, 51073, 246079, 357511, 561803, 1722553, 2706869, 3932621, 18948083, 29775559, 208428913]

約数ペア:

[(1, 208428913), (7, 29775559), (11, 18948083), (53, 3932621), (77, 2706869), (121, 1722553), (371, 561803), (583, 357511), (847, 246079), (4081, 51073), (4643, 44891), (6413, 32501)]