2785815

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2039

約数の個数: 24

約数和(自身を含む): 4987008

約数和(自身を除く): 2201193

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 1997, 5991, 9985, 17973, 29955, 61907, 89865, 185721, 309535, 557163, 928605, 2785815]

約数ペア:

[(1, 2785815), (3, 928605), (5, 557163), (9, 309535), (15, 185721), (31, 89865), (45, 61907), (93, 29955), (155, 17973), (279, 9985), (465, 5991), (1395, 1997)]