21000343318

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{1229}}^1\times {\mathrm{67273}}^1$

素因数の和:68631

約数の個数: 16

約数和(自身を含む): 31774855680

約数和(自身を除く): 10774512362

約数列:

[1, 2, 127, 254, 1229, 2458, 67273, 134546, 156083, 312166, 8543671, 17087342, 82678517, 165357034, 10500171659, 21000343318]

約数ペア:

[(1, 21000343318), (2, 10500171659), (127, 165357034), (254, 82678517), (1229, 17087342), (2458, 8543671), (67273, 312166), (134546, 156083)]