21120585

素因数分解:

$3^1\times 5^1\times {\mathrm{769}}^1\times {\mathrm{1831}}^1$

素因数の和:2608

約数の個数: 16

約数和(自身を含む): 33855360

約数和(自身を除く): 12734775

約数列:

[1, 3, 5, 15, 769, 1831, 2307, 3845, 5493, 9155, 11535, 27465, 1408039, 4224117, 7040195, 21120585]

約数ペア:

[(1, 21120585), (3, 7040195), (5, 4224117), (15, 1408039), (769, 27465), (1831, 11535), (2307, 9155), (3845, 5493)]