20945815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{1021}}^1$

素因数の和:1410

約数の個数: 16

約数和(自身を含む): 27520416

約数和(自身を除く): 6574601

約数列:

[1, 5, 11, 55, 373, 1021, 1865, 4103, 5105, 11231, 20515, 56155, 380833, 1904165, 4189163, 20945815]

約数ペア:

[(1, 20945815), (5, 4189163), (11, 1904165), (55, 380833), (373, 56155), (1021, 20515), (1865, 11231), (4103, 5105)]