21048556

素因数分解:

$2^2\times {\mathrm{131}}^1\times {\mathrm{40169}}^1$

素因数の和:40304

約数の個数: 12

約数和(自身を含む): 37117080

約数和(自身を除く): 16068524

約数列:

[1, 2, 4, 131, 262, 524, 40169, 80338, 160676, 5262139, 10524278, 21048556]

約数ペア:

[(1, 21048556), (2, 10524278), (4, 5262139), (131, 160676), (262, 80338), (524, 40169)]