18876159

素因数分解:

$3^4\times {\mathrm{397}}^1\times {\mathrm{587}}^1$

素因数の和:996

約数の個数: 20

約数和(自身を含む): 28316904

約数和(自身を除く): 9440745

約数列:

[1, 3, 9, 27, 81, 397, 587, 1191, 1761, 3573, 5283, 10719, 15849, 32157, 47547, 233039, 699117, 2097351, 6292053, 18876159]

約数ペア:

[(1, 18876159), (3, 6292053), (9, 2097351), (27, 699117), (81, 233039), (397, 47547), (587, 32157), (1191, 15849), (1761, 10719), (3573, 5283)]