20000487

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 30191616

約数和(自身を除く): 10191129

約数列:

[1, 3, 13, 31, 39, 71, 93, 213, 233, 403, 699, 923, 1209, 2201, 2769, 3029, 6603, 7223, 9087, 16543, 21669, 28613, 49629, 85839, 93899, 215059, 281697, 512833, 645177, 1538499, 6666829, 20000487]

約数ペア:

[(1, 20000487), (3, 6666829), (13, 1538499), (31, 645177), (39, 512833), (71, 281697), (93, 215059), (213, 93899), (233, 85839), (403, 49629), (699, 28613), (923, 21669), (1209, 16543), (2201, 9087), (2769, 7223), (3029, 6603)]