199909171

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21817}}^1$

素因数の和:21859

約数の個数: 24

約数和(自身を含む): 268623216

約数和(自身を除く): 68714045

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 539, 833, 1309, 9163, 21817, 152719, 239987, 370889, 1069033, 1679909, 2596223, 4079779, 11759363, 18173561, 28558453, 199909171]

約数ペア:

[(1, 199909171), (7, 28558453), (11, 18173561), (17, 11759363), (49, 4079779), (77, 2596223), (119, 1679909), (187, 1069033), (539, 370889), (833, 239987), (1309, 152719), (9163, 21817)]