21694568

素因数分解:

$2^3\times 7^1\times {\mathrm{387403}}^1$

素因数の和:387416

約数の個数: 16

約数和(自身を含む): 46488480

約数和(自身を除く): 24793912

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 387403, 774806, 1549612, 2711821, 3099224, 5423642, 10847284, 21694568]

約数ペア:

[(1, 21694568), (2, 10847284), (4, 5423642), (7, 3099224), (8, 2711821), (14, 1549612), (28, 774806), (56, 387403)]