21038032

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{24809}}^1$

素因数の和:24870

約数の個数: 20

約数和(自身を含む): 41531940

約数和(自身を除く): 20493908

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 24809, 49618, 99236, 198472, 396944, 1314877, 2629754, 5259508, 10519016, 21038032]

約数ペア:

[(1, 21038032), (2, 10519016), (4, 5259508), (8, 2629754), (16, 1314877), (53, 396944), (106, 198472), (212, 99236), (424, 49618), (848, 24809)]