20881838

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{12269}}^1$

素因数の和:12331

約数の個数: 16

約数和(自身を含む): 33570720

約数和(自身を除く): 12688882

約数列:

[1, 2, 23, 37, 46, 74, 851, 1702, 12269, 24538, 282187, 453953, 564374, 907906, 10440919, 20881838]

約数ペア:

[(1, 20881838), (2, 10440919), (23, 907906), (37, 564374), (46, 453953), (74, 282187), (851, 24538), (1702, 12269)]