21064173

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31771}}^1$

素因数の和:31804

約数の個数: 16

約数和(自身を含む): 32026176

約数和(自身を除く): 10962003

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 31771, 95313, 413023, 540107, 1239069, 1620321, 7021391, 21064173]

約数ペア:

[(1, 21064173), (3, 7021391), (13, 1620321), (17, 1239069), (39, 540107), (51, 413023), (221, 95313), (663, 31771)]