21521724

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{256211}}^1$

素因数の和:256225

約数の個数: 24

約数和(自身を含む): 57391488

約数和(自身を除く): 35869764

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 256211, 512422, 768633, 1024844, 1537266, 1793477, 3074532, 3586954, 5380431, 7173908, 10760862, 21521724]

約数ペア:

[(1, 21521724), (2, 10760862), (3, 7173908), (4, 5380431), (6, 3586954), (7, 3074532), (12, 1793477), (14, 1537266), (21, 1024844), (28, 768633), (42, 512422), (84, 256211)]