20437791

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{2143}}^1$

素因数の和:2191

約数の個数: 24

約数和(自身を含む): 31593984

約数和(自身を除く): 11156193

約数列:

[1, 3, 11, 17, 33, 51, 187, 289, 561, 867, 2143, 3179, 6429, 9537, 23573, 36431, 70719, 109293, 400741, 619327, 1202223, 1857981, 6812597, 20437791]

約数ペア:

[(1, 20437791), (3, 6812597), (11, 1857981), (17, 1202223), (33, 619327), (51, 400741), (187, 109293), (289, 70719), (561, 36431), (867, 23573), (2143, 9537), (3179, 6429)]