81271876

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{22157}}^1$

素因数の和:22299

約数の個数: 24

約数和(自身を含む): 163791936

約数和(自身を除く): 82520060

約数列:

[1, 2, 4, 7, 14, 28, 131, 262, 524, 917, 1834, 3668, 22157, 44314, 88628, 155099, 310198, 620396, 2902567, 5805134, 11610268, 20317969, 40635938, 81271876]

約数ペア:

[(1, 81271876), (2, 40635938), (4, 20317969), (7, 11610268), (14, 5805134), (28, 2902567), (131, 620396), (262, 310198), (524, 155099), (917, 88628), (1834, 44314), (3668, 22157)]