18985967

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1459}}^1$

素因数の和:1503

約数の個数: 24

約数和(自身を含む): 25649280

約数和(自身を除く): 6663313

約数列:

[1, 7, 11, 13, 77, 91, 143, 169, 1001, 1183, 1459, 1859, 10213, 13013, 16049, 18967, 112343, 132769, 208637, 246571, 1460459, 1725997, 2712281, 18985967]

約数ペア:

[(1, 18985967), (7, 2712281), (11, 1725997), (13, 1460459), (77, 246571), (91, 208637), (143, 132769), (169, 112343), (1001, 18967), (1183, 16049), (1459, 13013), (1859, 10213)]