2783249679

素因数分解:

$3^1\times 7^1\times {\mathrm{1999}}^1\times {\mathrm{66301}}^1$

素因数の和:68310

約数の個数: 16

約数和(自身を含む): 4243328000

約数和(自身を除く): 1460078321

約数列:

[1, 3, 7, 21, 1999, 5997, 13993, 41979, 66301, 198903, 464107, 1392321, 132535699, 397607097, 927749893, 2783249679]

約数ペア:

[(1, 2783249679), (3, 927749893), (7, 397607097), (21, 132535699), (1999, 1392321), (5997, 464107), (13993, 198903), (41979, 66301)]