18964976

素因数分解:

$2^4\times {\mathrm{331}}^1\times {\mathrm{3581}}^1$

素因数の和:3920

約数の個数: 20

約数和(自身を含む): 36865944

約数和(自身を除く): 17900968

約数列:

[1, 2, 4, 8, 16, 331, 662, 1324, 2648, 3581, 5296, 7162, 14324, 28648, 57296, 1185311, 2370622, 4741244, 9482488, 18964976]

約数ペア:

[(1, 18964976), (2, 9482488), (4, 4741244), (8, 2370622), (16, 1185311), (331, 57296), (662, 28648), (1324, 14324), (2648, 7162), (3581, 5296)]