18939777

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:712

約数の個数: 16

約数和(自身を含む): 25787520

約数和(自身を除く): 6847743

約数列:

[1, 3, 73, 197, 219, 439, 591, 1317, 14381, 32047, 43143, 86483, 96141, 259449, 6313259, 18939777]

約数ペア:

[(1, 18939777), (3, 6313259), (73, 259449), (197, 96141), (219, 86483), (439, 43143), (591, 32047), (1317, 14381)]