20267678

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1\times {\mathrm{389}}^1$

素因数の和:739

約数の個数: 16

約数和(自身を含む): 30888000

約数和(自身を除く): 10620322

約数列:

[1, 2, 109, 218, 239, 389, 478, 778, 26051, 42401, 52102, 84802, 92971, 185942, 10133839, 20267678]

約数ペア:

[(1, 20267678), (2, 10133839), (109, 185942), (218, 92971), (239, 84802), (389, 52102), (478, 42401), (778, 26051)]