28440.000000

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:601

約数の個数: 16

約数和(自身を含む): 1503360

約数和(自身を除く): 504603

約数列:

[1, 3, 9, 27, 71, 213, 521, 639, 1563, 1917, 4689, 14067, 36991, 110973, 332919, 998757]

約数ペア:

[(1, 998757), (3, 332919), (9, 110973), (27, 36991), (71, 14067), (213, 4689), (521, 1917), (639, 1563)]