21379668

素因数分解:

$2^2\times 3^1\times {\mathrm{997}}^1\times {\mathrm{1787}}^1$

素因数の和:2791

約数の個数: 24

約数和(自身を含む): 49963872

約数和(自身を除く): 28584204

約数列:

[1, 2, 3, 4, 6, 12, 997, 1787, 1994, 2991, 3574, 3988, 5361, 5982, 7148, 10722, 11964, 21444, 1781639, 3563278, 5344917, 7126556, 10689834, 21379668]

約数ペア:

[(1, 21379668), (2, 10689834), (3, 7126556), (4, 5344917), (6, 3563278), (12, 1781639), (997, 21444), (1787, 11964), (1994, 10722), (2991, 7148), (3574, 5982), (3988, 5361)]