18996669

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{257}}^1$

素因数の和:497

約数の個数: 24

約数和(自身を含む): 28334592

約数和(自身を除く): 9337923

約数列:

[1, 3, 9, 43, 129, 191, 257, 387, 573, 771, 1719, 2313, 8213, 11051, 24639, 33153, 49087, 73917, 99459, 147261, 441783, 2110741, 6332223, 18996669]

約数ペア:

[(1, 18996669), (3, 6332223), (9, 2110741), (43, 441783), (129, 147261), (191, 99459), (257, 73917), (387, 49087), (573, 33153), (771, 24639), (1719, 11051), (2313, 8213)]