20884105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{881}}^1$

素因数の和:1328

約数の個数: 16

約数和(自身を含む): 27433728

約数和(自身を除く): 6549623

約数列:

[1, 5, 11, 55, 431, 881, 2155, 4405, 4741, 9691, 23705, 48455, 379711, 1898555, 4176821, 20884105]

約数ペア:

[(1, 20884105), (5, 4176821), (11, 1898555), (55, 379711), (431, 48455), (881, 23705), (2155, 9691), (4405, 4741)]