2800863

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:703

約数の個数: 24

約数和(自身を含む): 4481568

約数和(自身を除く): 1680705

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 333, 481, 647, 1443, 1941, 4329, 5823, 8411, 23939, 25233, 71817, 75699, 215451, 311207, 933621, 2800863]

約数ペア:

[(1, 2800863), (3, 933621), (9, 311207), (13, 215451), (37, 75699), (39, 71817), (111, 25233), (117, 23939), (333, 8411), (481, 5823), (647, 4329), (1443, 1941)]