20958556

素因数分解:

$2^2\times {\mathrm{127}}^1\times {\mathrm{41257}}^1$

素因数の和:41388

約数の個数: 12

約数和(自身を含む): 36967168

約数和(自身を除く): 16008612

約数列:

[1, 2, 4, 127, 254, 508, 41257, 82514, 165028, 5239639, 10479278, 20958556]

約数ペア:

[(1, 20958556), (2, 10479278), (4, 5239639), (127, 165028), (254, 82514), (508, 41257)]