20791605

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{72953}}^1$

素因数の和:72980

約数の個数: 16

約数和(自身を含む): 35017920

約数和(自身を除く): 14226315

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 72953, 218859, 364765, 1094295, 1386107, 4158321, 6930535, 20791605]

約数ペア:

[(1, 20791605), (3, 6930535), (5, 4158321), (15, 1386107), (19, 1094295), (57, 364765), (95, 218859), (285, 72953)]