28185619

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{107}}^1\times {\mathrm{311}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 35852544

約数和(自身を除く): 7666925

約数列:

[1, 7, 11, 77, 107, 121, 311, 749, 847, 1177, 2177, 3421, 8239, 12947, 23947, 33277, 37631, 90629, 232939, 263417, 366047, 2562329, 4026517, 28185619]

約数ペア:

[(1, 28185619), (7, 4026517), (11, 2562329), (77, 366047), (107, 263417), (121, 232939), (311, 90629), (749, 37631), (847, 33277), (1177, 23947), (2177, 12947), (3421, 8239)]