20891739

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{859}}^1$

素因数の和:951

約数の個数: 24

約数和(自身を含む): 31111360

約数和(自身を除く): 10219621

約数列:

[1, 3, 11, 33, 67, 121, 201, 363, 737, 859, 2211, 2577, 8107, 9449, 24321, 28347, 57553, 103939, 172659, 311817, 633083, 1899249, 6963913, 20891739]

約数ペア:

[(1, 20891739), (3, 6963913), (11, 1899249), (33, 633083), (67, 311817), (121, 172659), (201, 103939), (363, 57553), (737, 28347), (859, 24321), (2211, 9449), (2577, 8107)]