20111468

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{881}}^1$

素因数の和:1337

約数の個数: 24

約数和(自身を含む): 38031840

約数和(自身を除く): 17920372

約数列:

[1, 2, 4, 13, 26, 52, 439, 878, 881, 1756, 1762, 3524, 5707, 11414, 11453, 22828, 22906, 45812, 386759, 773518, 1547036, 5027867, 10055734, 20111468]

約数ペア:

[(1, 20111468), (2, 10055734), (4, 5027867), (13, 1547036), (26, 773518), (52, 386759), (439, 45812), (878, 22906), (881, 22828), (1756, 11453), (1762, 11414), (3524, 5707)]