21556266

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^2\times {\mathrm{1279}}^1$

素因数の和:1390

約数の個数: 24

約数和(自身を含む): 43975680

約数和(自身を除く): 22419414

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 1279, 2558, 2809, 3837, 5618, 7674, 8427, 16854, 67787, 135574, 203361, 406722, 3592711, 7185422, 10778133, 21556266]

約数ペア:

[(1, 21556266), (2, 10778133), (3, 7185422), (6, 3592711), (53, 406722), (106, 203361), (159, 135574), (318, 67787), (1279, 16854), (2558, 8427), (2809, 7674), (3837, 5618)]