16920944

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{55661}}^1$

素因数の和:55688

約数の個数: 20

約数和(自身を含む): 34510440

約数和(自身を除く): 17589496

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 55661, 111322, 222644, 445288, 890576, 1057559, 2115118, 4230236, 8460472, 16920944]

約数ペア:

[(1, 16920944), (2, 8460472), (4, 4230236), (8, 2115118), (16, 1057559), (19, 890576), (38, 445288), (76, 222644), (152, 111322), (304, 55661)]