20797284976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{99986947}}^1$

素因数の和:99986968

約数の個数: 20

約数和(自身を含む): 43394335432

約数和(自身を除く): 22597050456

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 99986947, 199973894, 399947788, 799895576, 1299830311, 1599791152, 2599660622, 5199321244, 10398642488, 20797284976]

約数ペア:

[(1, 20797284976), (2, 10398642488), (4, 5199321244), (8, 2599660622), (13, 1599791152), (16, 1299830311), (26, 799895576), (52, 399947788), (104, 199973894), (208, 99986947)]