7942389

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{619}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 13332480

約数和(自身を除く): 5390091

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 619, 987, 1833, 1857, 4277, 4333, 8047, 12831, 12999, 24141, 29093, 56329, 87279, 168987, 203651, 378209, 610953, 1134627, 2647463, 7942389]

約数ペア:

[(1, 7942389), (3, 2647463), (7, 1134627), (13, 610953), (21, 378209), (39, 203651), (47, 168987), (91, 87279), (141, 56329), (273, 29093), (329, 24141), (611, 12999), (619, 12831), (987, 8047), (1833, 4333), (1857, 4277)]