20971841

素因数分解:

${\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{5591}}^1$

素因数の和:5644

約数の個数: 12

約数和(自身を含む): 23799552

約数和(自身を除く): 2827711

約数列:

[1, 11, 31, 121, 341, 3751, 5591, 61501, 173321, 676511, 1906531, 20971841]

約数ペア:

[(1, 20971841), (11, 1906531), (31, 676511), (121, 173321), (341, 61501), (3751, 5591)]