20806412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{4591}}^1$

素因数の和:4709

約数の個数: 24

約数和(自身を含む): 40115712

約数和(自身を除く): 19309300

約数列:

[1, 2, 4, 11, 22, 44, 103, 206, 412, 1133, 2266, 4532, 4591, 9182, 18364, 50501, 101002, 202004, 472873, 945746, 1891492, 5201603, 10403206, 20806412]

約数ペア:

[(1, 20806412), (2, 10403206), (4, 5201603), (11, 1891492), (22, 945746), (44, 472873), (103, 202004), (206, 101002), (412, 50501), (1133, 18364), (2266, 9182), (4532, 4591)]