20990946

素因数分解:

$2^1\times 3^1\times {\mathrm{139}}^1\times {\mathrm{25169}}^1$

素因数の和:25313

約数の個数: 16

約数和(自身を含む): 42285600

約数和(自身を除く): 21294654

約数列:

[1, 2, 3, 6, 139, 278, 417, 834, 25169, 50338, 75507, 151014, 3498491, 6996982, 10495473, 20990946]

約数ペア:

[(1, 20990946), (2, 10495473), (3, 6996982), (6, 3498491), (139, 151014), (278, 75507), (417, 50338), (834, 25169)]