19797776

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{9743}}^1$

素因数の和:9878

約数の個数: 20

約数和(自身を含む): 38664192

約数和(自身を除く): 18866416

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 9743, 19486, 38972, 77944, 155888, 1237361, 2474722, 4949444, 9898888, 19797776]

約数ペア:

[(1, 19797776), (2, 9898888), (4, 4949444), (8, 2474722), (16, 1237361), (127, 155888), (254, 77944), (508, 38972), (1016, 19486), (2032, 9743)]