19201923

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{487}}^1$

素因数の和:843

約数の個数: 24

約数和(自身を含む): 30019808

約数和(自身を除く): 10817885

約数列:

[1, 3, 9, 13, 39, 117, 337, 487, 1011, 1461, 3033, 4381, 4383, 6331, 13143, 18993, 39429, 56979, 164119, 492357, 1477071, 2133547, 6400641, 19201923]

約数ペア:

[(1, 19201923), (3, 6400641), (9, 2133547), (13, 1477071), (39, 492357), (117, 164119), (337, 56979), (487, 39429), (1011, 18993), (1461, 13143), (3033, 6331), (4381, 4383)]