28139896

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{206911}}^1$

素因数の和:206934

約数の個数: 16

約数和(自身を含む): 55866240

約数和(自身を除く): 27726344

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 206911, 413822, 827644, 1655288, 3517487, 7034974, 14069948, 28139896]

約数ペア:

[(1, 28139896), (2, 14069948), (4, 7034974), (8, 3517487), (17, 1655288), (34, 827644), (68, 413822), (136, 206911)]