209455939

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{4919}}^1$

素因数の和:5023

約数の個数: 24

約数和(自身を含む): 269222400

約数和(自身を除く): 59766461

約数列:

[1, 7, 11, 49, 77, 79, 539, 553, 869, 3871, 4919, 6083, 34433, 42581, 54109, 241031, 378763, 388601, 2651341, 2720207, 4274611, 19041449, 29922277, 209455939]

約数ペア:

[(1, 209455939), (7, 29922277), (11, 19041449), (49, 4274611), (77, 2720207), (79, 2651341), (539, 388601), (553, 378763), (869, 241031), (3871, 54109), (4919, 42581), (6083, 34433)]