21990959946

素因数分解:

$2^1\times 3^3\times {\mathrm{407239999}}^1$

素因数の和:407240010

約数の個数: 16

約数和(自身を含む): 48868800000

約数和(自身を除く): 26877840054

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 407239999, 814479998, 1221719997, 2443439994, 3665159991, 7330319982, 10995479973, 21990959946]

約数ペア:

[(1, 21990959946), (2, 10995479973), (3, 7330319982), (6, 3665159991), (9, 2443439994), (18, 1221719997), (27, 814479998), (54, 407239999)]