19701605

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{701}}^1$

素因数の和:797

約数の個数: 32

約数和(自身を含む): 29922048

約数和(自身を除く): 10220443

約数列:

[1, 5, 7, 11, 35, 55, 73, 77, 365, 385, 511, 701, 803, 2555, 3505, 4015, 4907, 5621, 7711, 24535, 28105, 38555, 51173, 53977, 255865, 269885, 358211, 562903, 1791055, 2814515, 3940321, 19701605]

約数ペア:

[(1, 19701605), (5, 3940321), (7, 2814515), (11, 1791055), (35, 562903), (55, 358211), (73, 269885), (77, 255865), (365, 53977), (385, 51173), (511, 38555), (701, 28105), (803, 24535), (2555, 7711), (3505, 5621), (4015, 4907)]