20121081

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{10663}}^1$

素因数の和:10720

約数の個数: 16

約数和(自身を含む): 29176704

約数和(自身を除く): 9055623

約数列:

[1, 3, 17, 37, 51, 111, 629, 1887, 10663, 31989, 181271, 394531, 543813, 1183593, 6707027, 20121081]

約数ペア:

[(1, 20121081), (3, 6707027), (17, 1183593), (37, 543813), (51, 394531), (111, 181271), (629, 31989), (1887, 10663)]