21847978

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{2903}}^1$

素因数の和:3029

約数の個数: 16

約数和(自身を含む): 33872256

約数和(自身を除く): 12024278

約数列:

[1, 2, 53, 71, 106, 142, 2903, 3763, 5806, 7526, 153859, 206113, 307718, 412226, 10923989, 21847978]

約数ペア:

[(1, 21847978), (2, 10923989), (53, 412226), (71, 307718), (106, 206113), (142, 153859), (2903, 7526), (3763, 5806)]