21185553

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{18061}}^1$

素因数の和:18104

約数の個数: 16

約数和(自身を含む): 31211136

約数和(自身を除く): 10025583

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 18061, 54183, 307037, 415403, 921111, 1246209, 7061851, 21185553]

約数ペア:

[(1, 21185553), (3, 7061851), (17, 1246209), (23, 921111), (51, 415403), (69, 307037), (391, 54183), (1173, 18061)]