21000984044

素因数分解:

$2^2\times {\mathrm{16943}}^1\times {\mathrm{309877}}^1$

素因数の和:326824

約数の個数: 12

約数和(自身を含む): 36754009824

約数和(自身を除く): 15753025780

約数列:

[1, 2, 4, 16943, 33886, 67772, 309877, 619754, 1239508, 5250246011, 10500492022, 21000984044]

約数ペア:

[(1, 21000984044), (2, 10500492022), (4, 5250246011), (16943, 1239508), (33886, 619754), (67772, 309877)]