19477619

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1\times {\mathrm{389}}^1$

素因数の和:730

約数の個数: 16

約数和(自身を含む): 23362560

約数和(自身を除く): 3884941

約数列:

[1, 7, 23, 161, 311, 389, 2177, 2723, 7153, 8947, 50071, 62629, 120979, 846853, 2782517, 19477619]

約数ペア:

[(1, 19477619), (7, 2782517), (23, 846853), (161, 120979), (311, 62629), (389, 50071), (2177, 8947), (2723, 7153)]