21082370

素因数分解:

$2^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{4759}}^1$

素因数の和:5209

約数の個数: 16

約数和(自身を含む): 38041920

約数和(自身を除く): 16959550

約数列:

[1, 2, 5, 10, 443, 886, 2215, 4430, 4759, 9518, 23795, 47590, 2108237, 4216474, 10541185, 21082370]

約数ペア:

[(1, 21082370), (2, 10541185), (5, 4216474), (10, 2108237), (443, 47590), (886, 23795), (2215, 9518), (4430, 4759)]