428710731

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{1103}}^1$

素因数の和:1303

約数の個数: 32

約数和(自身を含む): 615555072

約数和(自身を除く): 186844341

約数列:

[1, 3, 23, 43, 69, 129, 131, 393, 989, 1103, 2967, 3013, 3309, 5633, 9039, 16899, 25369, 47429, 76107, 129559, 142287, 144493, 388677, 433479, 1090867, 3272601, 3323339, 6213199, 9970017, 18639597, 142903577, 428710731]

約数ペア:

[(1, 428710731), (3, 142903577), (23, 18639597), (43, 9970017), (69, 6213199), (129, 3323339), (131, 3272601), (393, 1090867), (989, 433479), (1103, 388677), (2967, 144493), (3013, 142287), (3309, 129559), (5633, 76107), (9039, 47429), (16899, 25369)]