28089341

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{419}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 32914560

約数和(自身を除く): 4825219

約数列:

[1, 7, 61, 157, 419, 427, 1099, 2933, 9577, 25559, 65783, 67039, 178913, 460481, 4012763, 28089341]

約数ペア:

[(1, 28089341), (7, 4012763), (61, 460481), (157, 178913), (419, 67039), (427, 65783), (1099, 25559), (2933, 9577)]