21251546

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{4051}}^1$

素因数の和:4157

約数の個数: 16

約数和(自身を含む): 33161568

約数和(自身を除く): 11910022

約数列:

[1, 2, 43, 61, 86, 122, 2623, 4051, 5246, 8102, 174193, 247111, 348386, 494222, 10625773, 21251546]

約数ペア:

[(1, 21251546), (2, 10625773), (43, 494222), (61, 348386), (86, 247111), (122, 174193), (2623, 8102), (4051, 5246)]