20516815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{1601}}^1$

素因数の和:1850

約数の個数: 16

約数和(自身を含む): 26990496

約数和(自身を除く): 6473681

約数列:

[1, 5, 11, 55, 233, 1165, 1601, 2563, 8005, 12815, 17611, 88055, 373033, 1865165, 4103363, 20516815]

約数ペア:

[(1, 20516815), (5, 4103363), (11, 1865165), (55, 373033), (233, 88055), (1165, 17611), (1601, 12815), (2563, 8005)]