28864913

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{643}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 37001664

約数和(自身を除く): 8136751

約数列:

[1, 7, 11, 53, 77, 121, 371, 583, 643, 847, 4081, 4501, 6413, 7073, 34079, 44891, 49511, 77803, 238553, 374869, 544621, 2624083, 4123559, 28864913]

約数ペア:

[(1, 28864913), (7, 4123559), (11, 2624083), (53, 544621), (77, 374869), (121, 238553), (371, 77803), (583, 49511), (643, 44891), (847, 34079), (4081, 7073), (4501, 6413)]