21357906

素因数分解:

$2^1\times 3^1\times {\mathrm{139}}^1\times {\mathrm{25609}}^1$

素因数の和:25753

約数の個数: 16

約数和(自身を含む): 43024800

約数和(自身を除く): 21666894

約数列:

[1, 2, 3, 6, 139, 278, 417, 834, 25609, 51218, 76827, 153654, 3559651, 7119302, 10678953, 21357906]

約数ペア:

[(1, 21357906), (2, 10678953), (3, 7119302), (6, 3559651), (139, 153654), (278, 76827), (417, 51218), (834, 25609)]