20686576

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6563}}^1$

素因数の和:6768

約数の個数: 20

約数和(自身を含む): 40289832

約数和(自身を除く): 19603256

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6563, 13126, 26252, 52504, 105008, 1292911, 2585822, 5171644, 10343288, 20686576]

約数ペア:

[(1, 20686576), (2, 10343288), (4, 5171644), (8, 2585822), (16, 1292911), (197, 105008), (394, 52504), (788, 26252), (1576, 13126), (3152, 6563)]