20865535

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{907}}^1$

素因数の和:1062

約数の個数: 16

約数和(自身を含む): 25888896

約数和(自身を除く): 5023361

約数列:

[1, 5, 43, 107, 215, 535, 907, 4535, 4601, 23005, 39001, 97049, 195005, 485245, 4173107, 20865535]

約数ペア:

[(1, 20865535), (5, 4173107), (43, 485245), (107, 195005), (215, 97049), (535, 39001), (907, 23005), (4535, 4601)]