21520054

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1\times {\mathrm{443}}^1$

素因数の和:779

約数の個数: 16

約数和(自身を含む): 32799168

約数和(自身を除く): 11279114

約数列:

[1, 2, 107, 214, 227, 443, 454, 886, 24289, 47401, 48578, 94802, 100561, 201122, 10760027, 21520054]

約数ペア:

[(1, 21520054), (2, 10760027), (107, 201122), (214, 100561), (227, 94802), (443, 48578), (454, 47401), (886, 24289)]