21331544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{205111}}^1$

素因数の和:205130

約数の個数: 16

約数和(自身を含む): 43073520

約数和(自身を除く): 21741976

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 205111, 410222, 820444, 1640888, 2666443, 5332886, 10665772, 21331544]

約数ペア:

[(1, 21331544), (2, 10665772), (4, 5332886), (8, 2666443), (13, 1640888), (26, 820444), (52, 410222), (104, 205111)]