18914860

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{4241}}^1$

素因数の和:4473

約数の個数: 24

約数和(自身を含む): 39908736

約数和(自身を除く): 20993876

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4241, 4460, 8482, 16964, 21205, 42410, 84820, 945743, 1891486, 3782972, 4728715, 9457430, 18914860]

約数ペア:

[(1, 18914860), (2, 9457430), (4, 4728715), (5, 3782972), (10, 1891486), (20, 945743), (223, 84820), (446, 42410), (892, 21205), (1115, 16964), (2230, 8482), (4241, 4460)]