18821621

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1933}}^1$

素因数の和:2060

約数の個数: 16

約数和(自身を含む): 23393664

約数和(自身を除く): 4572043

約数列:

[1, 7, 13, 91, 107, 749, 1391, 1933, 9737, 13531, 25129, 175903, 206831, 1447817, 2688803, 18821621]

約数ペア:

[(1, 18821621), (7, 2688803), (13, 1447817), (91, 206831), (107, 175903), (749, 25129), (1391, 13531), (1933, 9737)]