28704193

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 35673792

約数和(自身を除く): 6969599

約数列:

[1, 7, 19, 37, 133, 259, 307, 361, 703, 2149, 2527, 4921, 5833, 11359, 13357, 40831, 79513, 93499, 110827, 215821, 775789, 1510747, 4100599, 28704193]

約数ペア:

[(1, 28704193), (7, 4100599), (19, 1510747), (37, 775789), (133, 215821), (259, 110827), (307, 93499), (361, 79513), (703, 40831), (2149, 13357), (2527, 11359), (4921, 5833)]