21183080

素因数分解:

$2^3\times 5^1\times {\mathrm{529577}}^1$

素因数の和:529588

約数の個数: 16

約数和(自身を含む): 47662020

約数和(自身を除く): 26478940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 529577, 1059154, 2118308, 2647885, 4236616, 5295770, 10591540, 21183080]

約数ペア:

[(1, 21183080), (2, 10591540), (4, 5295770), (5, 4236616), (8, 2647885), (10, 2118308), (20, 1059154), (40, 529577)]