197791990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1798109}}^1$

素因数の和:1798127

約数の個数: 16

約数和(自身を含む): 388391760

約数和(自身を除く): 190599770

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 1798109, 3596218, 8990545, 17981090, 19779199, 39558398, 98895995, 197791990]

約数ペア:

[(1, 197791990), (2, 98895995), (5, 39558398), (10, 19779199), (11, 17981090), (22, 8990545), (55, 3596218), (110, 1798109)]