19988160004

素因数分解:

$2^2\times {\mathrm{16097}}^1\times {\mathrm{310433}}^1$

素因数の和:326534

約数の個数: 12

約数和(自身を含む): 34981565724

約数和(自身を除く): 14993405720

約数列:

[1, 2, 4, 16097, 32194, 64388, 310433, 620866, 1241732, 4997040001, 9994080002, 19988160004]

約数ペア:

[(1, 19988160004), (2, 9994080002), (4, 4997040001), (16097, 1241732), (32194, 620866), (64388, 310433)]