20389105

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{503}}^1$

素因数の和:597

約数の個数: 24

約数和(自身を含む): 27349056

約数和(自身を除く): 6959951

約数列:

[1, 5, 11, 55, 67, 121, 335, 503, 605, 737, 2515, 3685, 5533, 8107, 27665, 33701, 40535, 60863, 168505, 304315, 370711, 1853555, 4077821, 20389105]

約数ペア:

[(1, 20389105), (5, 4077821), (11, 1853555), (55, 370711), (67, 304315), (121, 168505), (335, 60863), (503, 40535), (605, 33701), (737, 27665), (2515, 8107), (3685, 5533)]