27999665

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{4201}}^1$

素因数の和:4280

約数の個数: 16

約数和(自身を含む): 35498496

約数和(自身を除く): 7498831

約数列:

[1, 5, 31, 43, 155, 215, 1333, 4201, 6665, 21005, 130231, 180643, 651155, 903215, 5599933, 27999665]

約数ペア:

[(1, 27999665), (5, 5599933), (31, 903215), (43, 651155), (155, 180643), (215, 130231), (1333, 21005), (4201, 6665)]