20955319

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{6329}}^1$

素因数の和:6390

約数の個数: 16

約数和(自身を含む): 26737920

約数和(自身を除く): 5782601

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 6329, 44303, 69619, 272147, 487333, 1905029, 2993617, 20955319]

約数ペア:

[(1, 20955319), (7, 2993617), (11, 1905029), (43, 487333), (77, 272147), (301, 69619), (473, 44303), (3311, 6329)]