21687796

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{2161}}^1$

素因数の和:2371

約数の個数: 24

約数和(自身を含む): 41103944

約数和(自身を除く): 19416148

約数列:

[1, 2, 4, 13, 26, 52, 193, 386, 772, 2161, 2509, 4322, 5018, 8644, 10036, 28093, 56186, 112372, 417073, 834146, 1668292, 5421949, 10843898, 21687796]

約数ペア:

[(1, 21687796), (2, 10843898), (4, 5421949), (13, 1668292), (26, 834146), (52, 417073), (193, 112372), (386, 56186), (772, 28093), (2161, 10036), (2509, 8644), (4322, 5018)]