21547834

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139921}}^1$

素因数の和:139941

約数の個数: 16

約数和(自身を含む): 40297536

約数和(自身を除く): 18749702

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 139921, 279842, 979447, 1539131, 1958894, 3078262, 10773917, 21547834]

約数ペア:

[(1, 21547834), (2, 10773917), (7, 3078262), (11, 1958894), (14, 1539131), (22, 979447), (77, 279842), (154, 139921)]