20939017

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:560

約数の個数: 16

約数和(自身を含む): 23618304

約数和(自身を除く): 2679287

約数列:

[1, 11, 47, 101, 401, 517, 1111, 4411, 4747, 18847, 40501, 52217, 207317, 445511, 1903547, 20939017]

約数ペア:

[(1, 20939017), (11, 1903547), (47, 445511), (101, 207317), (401, 52217), (517, 40501), (1111, 18847), (4411, 4747)]