21000468

素因数分解:

$2^2\times 3^1\times {\mathrm{521}}^1\times {\mathrm{3359}}^1$

素因数の和:3887

約数の個数: 24

約数和(自身を含む): 49109760

約数和(自身を除く): 28109292

約数列:

[1, 2, 3, 4, 6, 12, 521, 1042, 1563, 2084, 3126, 3359, 6252, 6718, 10077, 13436, 20154, 40308, 1750039, 3500078, 5250117, 7000156, 10500234, 21000468]

約数ペア:

[(1, 21000468), (2, 10500234), (3, 7000156), (4, 5250117), (6, 3500078), (12, 1750039), (521, 40308), (1042, 20154), (1563, 13436), (2084, 10077), (3126, 6718), (3359, 6252)]