21913168

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25841}}^1$

素因数の和:25902

約数の個数: 20

約数和(自身を含む): 43259508

約数和(自身を除く): 21346340

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25841, 51682, 103364, 206728, 413456, 1369573, 2739146, 5478292, 10956584, 21913168]

約数ペア:

[(1, 21913168), (2, 10956584), (4, 5478292), (8, 2739146), (16, 1369573), (53, 413456), (106, 206728), (212, 103364), (424, 51682), (848, 25841)]