21331216

素因数分解:

$2^4\times {\mathrm{277}}^1\times {\mathrm{4813}}^1$

素因数の和:5098

約数の個数: 20

約数和(自身を含む): 41487052

約数和(自身を除く): 20155836

約数列:

[1, 2, 4, 8, 16, 277, 554, 1108, 2216, 4432, 4813, 9626, 19252, 38504, 77008, 1333201, 2666402, 5332804, 10665608, 21331216]

約数ペア:

[(1, 21331216), (2, 10665608), (4, 5332804), (8, 2666402), (16, 1333201), (277, 77008), (554, 38504), (1108, 19252), (2216, 9626), (4432, 4813)]