20489588

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{13807}}^1$

素因数の和:13871

約数の個数: 24

約数和(自身を含む): 41755392

約数和(自身を除く): 21265804

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 13807, 27614, 55228, 96649, 193298, 386596, 731771, 1463542, 2927084, 5122397, 10244794, 20489588]

約数ペア:

[(1, 20489588), (2, 10244794), (4, 5122397), (7, 2927084), (14, 1463542), (28, 731771), (53, 386596), (106, 193298), (212, 96649), (371, 55228), (742, 27614), (1484, 13807)]