21253424

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:485

約数の個数: 40

約数和(自身を含む): 42666912

約数和(自身を除く): 21413488

約数列:

[1, 2, 4, 8, 16, 53, 71, 106, 142, 212, 284, 353, 424, 568, 706, 848, 1136, 1412, 2824, 3763, 5648, 7526, 15052, 18709, 25063, 30104, 37418, 50126, 60208, 74836, 100252, 149672, 200504, 299344, 401008, 1328339, 2656678, 5313356, 10626712, 21253424]

約数ペア:

[(1, 21253424), (2, 10626712), (4, 5313356), (8, 2656678), (16, 1328339), (53, 401008), (71, 299344), (106, 200504), (142, 149672), (212, 100252), (284, 74836), (353, 60208), (424, 50126), (568, 37418), (706, 30104), (848, 25063), (1136, 18709), (1412, 15052), (2824, 7526), (3763, 5648)]