19775996816

素因数分解:

$2^4\times {\mathrm{317}}^1\times {\mathrm{3899053}}^1$

素因数の和:3899378

約数の個数: 20

約数和(自身を含む): 38436874332

約数和(自身を除く): 18660877516

約数列:

[1, 2, 4, 8, 16, 317, 634, 1268, 2536, 5072, 3899053, 7798106, 15596212, 31192424, 62384848, 1235999801, 2471999602, 4943999204, 9887998408, 19775996816]

約数ペア:

[(1, 19775996816), (2, 9887998408), (4, 4943999204), (8, 2471999602), (16, 1235999801), (317, 62384848), (634, 31192424), (1268, 15596212), (2536, 7798106), (5072, 3899053)]