21313369

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{7481}}^1$

素因数の和:7536

約数の個数: 16

約数和(自身を含む): 27294336

約数和(自身を除く): 5980967

約数列:

[1, 7, 11, 37, 77, 259, 407, 2849, 7481, 52367, 82291, 276797, 576037, 1937579, 3044767, 21313369]

約数ペア:

[(1, 21313369), (7, 3044767), (11, 1937579), (37, 576037), (77, 276797), (259, 82291), (407, 52367), (2849, 7481)]