21640934

素因数分解:

$2^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{5501}}^1$

素因数の和:5791

約数の個数: 16

約数和(自身を含む): 37237536

約数和(自身を除く): 15596602

約数列:

[1, 2, 7, 14, 281, 562, 1967, 3934, 5501, 11002, 38507, 77014, 1545781, 3091562, 10820467, 21640934]

約数ペア:

[(1, 21640934), (2, 10820467), (7, 3091562), (14, 1545781), (281, 77014), (562, 38507), (1967, 11002), (3934, 5501)]