20496553

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{3457}}^1$

素因数の和:3493

約数の個数: 18

約数和(自身を含む): 26215098

約数和(自身を除く): 5718545

約数列:

[1, 7, 11, 49, 77, 121, 539, 847, 3457, 5929, 24199, 38027, 169393, 266189, 418297, 1863323, 2928079, 20496553]

約数ペア:

[(1, 20496553), (7, 2928079), (11, 1863323), (49, 418297), (77, 266189), (121, 169393), (539, 38027), (847, 24199), (3457, 5929)]