19922193

素因数分解:

$3^4\times {\mathrm{419}}^1\times {\mathrm{587}}^1$

素因数の和:1018

約数の個数: 20

約数和(自身を含む): 29882160

約数和(自身を除く): 9959967

約数列:

[1, 3, 9, 27, 81, 419, 587, 1257, 1761, 3771, 5283, 11313, 15849, 33939, 47547, 245953, 737859, 2213577, 6640731, 19922193]

約数ペア:

[(1, 19922193), (3, 6640731), (9, 2213577), (27, 737859), (81, 245953), (419, 47547), (587, 33939), (1257, 15849), (1761, 11313), (3771, 5283)]