21252994780

素因数分解:

$2^2\times 5^1\times {\mathrm{5351}}^1\times {\mathrm{198589}}^1$

素因数の和:203949

約数の個数: 24

約数和(自身を含む): 44639854560

約数和(自身を除く): 23386859780

約数列:

[1, 2, 4, 5, 10, 20, 5351, 10702, 21404, 26755, 53510, 107020, 198589, 397178, 794356, 992945, 1985890, 3971780, 1062649739, 2125299478, 4250598956, 5313248695, 10626497390, 21252994780]

約数ペア:

[(1, 21252994780), (2, 10626497390), (4, 5313248695), (5, 4250598956), (10, 2125299478), (20, 1062649739), (5351, 3971780), (10702, 1985890), (21404, 992945), (26755, 794356), (53510, 397178), (107020, 198589)]