21000388636

素因数分解:

$2^2\times {\mathrm{7219}}^1\times {\mathrm{727261}}^1$

素因数の和:734484

約数の個数: 12

約数和(自身を含む): 36755821480

約数和(自身を除く): 15755432844

約数列:

[1, 2, 4, 7219, 14438, 28876, 727261, 1454522, 2909044, 5250097159, 10500194318, 21000388636]

約数ペア:

[(1, 21000388636), (2, 10500194318), (4, 5250097159), (7219, 2909044), (14438, 1454522), (28876, 727261)]