20798141

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{523}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 28170240

約数和(自身を除く): 7372099

約数列:

[1, 7, 13, 19, 23, 91, 133, 161, 247, 299, 437, 523, 1729, 2093, 3059, 3661, 5681, 6799, 9937, 12029, 39767, 47593, 69559, 84203, 129181, 156377, 228551, 904267, 1094639, 1599857, 2971163, 20798141]

約数ペア:

[(1, 20798141), (7, 2971163), (13, 1599857), (19, 1094639), (23, 904267), (91, 228551), (133, 156377), (161, 129181), (247, 84203), (299, 69559), (437, 47593), (523, 39767), (1729, 12029), (2093, 9937), (3059, 6799), (3661, 5681)]