28505009

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 31570560

約数和(自身を除く): 3065551

約数列:

[1, 13, 71, 89, 347, 923, 1157, 4511, 6319, 24637, 30883, 82147, 320281, 401479, 2192693, 28505009]

約数ペア:

[(1, 28505009), (13, 2192693), (71, 401479), (89, 320281), (347, 82147), (923, 30883), (1157, 24637), (4511, 6319)]