198551509

素因数分解:

${\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{281}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 223557192

約数和(自身を除く): 25005683

約数列:

[1, 13, 37, 113, 169, 281, 481, 1469, 3653, 4181, 6253, 10397, 19097, 31753, 47489, 54353, 135161, 412789, 706589, 1174861, 1757093, 5366257, 15273193, 198551509]

約数ペア:

[(1, 198551509), (13, 15273193), (37, 5366257), (113, 1757093), (169, 1174861), (281, 706589), (481, 412789), (1469, 135161), (3653, 54353), (4181, 47489), (6253, 31753), (10397, 19097)]