261081359

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{28493}}^1$

素因数の和:28535

約数の個数: 24

約数和(自身を含む): 350818128

約数和(自身を除く): 89736769

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 539, 833, 1309, 9163, 28493, 199451, 313423, 484381, 1396157, 2193961, 3390667, 5328191, 15357727, 23734669, 37297337, 261081359]

約数ペア:

[(1, 261081359), (7, 37297337), (11, 23734669), (17, 15357727), (49, 5328191), (77, 3390667), (119, 2193961), (187, 1396157), (539, 484381), (833, 313423), (1309, 199451), (9163, 28493)]