18378008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2153}}^1$

素因数の和:2267

約数の個数: 32

約数和(自身を含む): 37996560

約数和(自身を除く): 19618552

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 97, 194, 388, 776, 1067, 2134, 2153, 4268, 4306, 8536, 8612, 17224, 23683, 47366, 94732, 189464, 208841, 417682, 835364, 1670728, 2297251, 4594502, 9189004, 18378008]

約数ペア:

[(1, 18378008), (2, 9189004), (4, 4594502), (8, 2297251), (11, 1670728), (22, 835364), (44, 417682), (88, 208841), (97, 189464), (194, 94732), (388, 47366), (776, 23683), (1067, 17224), (2134, 8612), (2153, 8536), (4268, 4306)]