20785076

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{2029}}^1$

素因数の和:2243

約数の個数: 24

約数和(自身を含む): 39390120

約数和(自身を除く): 18605044

約数列:

[1, 2, 4, 13, 26, 52, 197, 394, 788, 2029, 2561, 4058, 5122, 8116, 10244, 26377, 52754, 105508, 399713, 799426, 1598852, 5196269, 10392538, 20785076]

約数ペア:

[(1, 20785076), (2, 10392538), (4, 5196269), (13, 1598852), (26, 799426), (52, 399713), (197, 105508), (394, 52754), (788, 26377), (2029, 10244), (2561, 8116), (4058, 5122)]