18804247

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{149}}^2$

素因数の和:327

約数の個数: 18

約数和(自身を含む): 23781464

約数和(自身を除く): 4977217

約数列:

[1, 7, 11, 77, 121, 149, 847, 1043, 1639, 11473, 18029, 22201, 126203, 155407, 244211, 1709477, 2686321, 18804247]

約数ペア:

[(1, 18804247), (7, 2686321), (11, 1709477), (77, 244211), (121, 155407), (149, 126203), (847, 22201), (1043, 18029), (1639, 11473)]