21704293

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1044

約数の個数: 16

約数和(自身を含む): 24526656

約数和(自身を除く): 2822363

約数列:

[1, 13, 41, 43, 533, 559, 947, 1763, 12311, 22919, 38827, 40721, 504751, 529373, 1669561, 21704293]

約数ペア:

[(1, 21704293), (13, 1669561), (41, 529373), (43, 504751), (533, 40721), (559, 38827), (947, 22919), (1763, 12311)]