11787478

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:639

約数の個数: 16

約数和(自身を含む): 18018000

約数和(自身を除く): 6230522

約数列:

[1, 2, 109, 139, 218, 278, 389, 778, 15151, 30302, 42401, 54071, 84802, 108142, 5893739, 11787478]

約数ペア:

[(1, 11787478), (2, 5893739), (109, 108142), (139, 84802), (218, 54071), (278, 42401), (389, 30302), (778, 15151)]