20789804

素因数分解:

$2^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{3769}}^1$

素因数の和:3977

約数の個数: 24

約数和(自身を含む): 41801760

約数和(自身を除く): 21011956

約数列:

[1, 2, 4, 7, 14, 28, 197, 394, 788, 1379, 2758, 3769, 5516, 7538, 15076, 26383, 52766, 105532, 742493, 1484986, 2969972, 5197451, 10394902, 20789804]

約数ペア:

[(1, 20789804), (2, 10394902), (4, 5197451), (7, 2969972), (14, 1484986), (28, 742493), (197, 105532), (394, 52766), (788, 26383), (1379, 15076), (2758, 7538), (3769, 5516)]