20780584

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{236143}}^1$

素因数の和:236160

約数の個数: 16

約数和(自身を含む): 42505920

約数和(自身を除く): 21725336

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 236143, 472286, 944572, 1889144, 2597573, 5195146, 10390292, 20780584]

約数ペア:

[(1, 20780584), (2, 10390292), (4, 5195146), (8, 2597573), (11, 1889144), (22, 944572), (44, 472286), (88, 236143)]