18847844

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:563

約数の個数: 24

約数和(自身を含む): 33633600

約数和(自身を除く): 14785756

約数列:

[1, 2, 4, 109, 139, 218, 278, 311, 436, 556, 622, 1244, 15151, 30302, 33899, 43229, 60604, 67798, 86458, 135596, 172916, 4711961, 9423922, 18847844]

約数ペア:

[(1, 18847844), (2, 9423922), (4, 4711961), (109, 172916), (139, 135596), (218, 86458), (278, 67798), (311, 60604), (436, 43229), (556, 33899), (622, 30302), (1244, 15151)]