1520221257

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{21433}}^1$

素因数の和:21550

約数の個数: 32

約数和(自身を含む): 2345736960

約数和(自身を除く): 825515703

約数列:

[1, 3, 9, 27, 37, 71, 111, 213, 333, 639, 999, 1917, 2627, 7881, 21433, 23643, 64299, 70929, 192897, 578691, 793021, 1521743, 2379063, 4565229, 7137189, 13695687, 21411567, 41087061, 56304491, 168913473, 506740419, 1520221257]

約数ペア:

[(1, 1520221257), (3, 506740419), (9, 168913473), (27, 56304491), (37, 41087061), (71, 21411567), (111, 13695687), (213, 7137189), (333, 4565229), (639, 2379063), (999, 1521743), (1917, 793021), (2627, 578691), (7881, 192897), (21433, 70929), (23643, 64299)]