21181974

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{320939}}^1$

素因数の和:320955

約数の個数: 16

約数和(自身を含む): 46215360

約数和(自身を除く): 25033386

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 320939, 641878, 962817, 1925634, 3530329, 7060658, 10590987, 21181974]

約数ペア:

[(1, 21181974), (2, 10590987), (3, 7060658), (6, 3530329), (11, 1925634), (22, 962817), (33, 641878), (66, 320939)]