21079084

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{9887}}^1$

素因数の和:9945

約数の個数: 24

約数和(自身を含む): 40699008

約数和(自身を除く): 19619924

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 533, 1066, 2132, 9887, 19774, 39548, 128531, 257062, 405367, 514124, 810734, 1621468, 5269771, 10539542, 21079084]

約数ペア:

[(1, 21079084), (2, 10539542), (4, 5269771), (13, 1621468), (26, 810734), (41, 514124), (52, 405367), (82, 257062), (164, 128531), (533, 39548), (1066, 19774), (2132, 9887)]