21732560

素因数分解:

$2^4\times 5^1\times {\mathrm{271657}}^1$

素因数の和:271670

約数の個数: 20

約数和(自身を含む): 50528388

約数和(自身を除く): 28795828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 271657, 543314, 1086628, 1358285, 2173256, 2716570, 4346512, 5433140, 10866280, 21732560]

約数ペア:

[(1, 21732560), (2, 10866280), (4, 5433140), (5, 4346512), (8, 2716570), (10, 2173256), (16, 1358285), (20, 1086628), (40, 543314), (80, 271657)]