642000957

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{2251}}^1$

素因数の和:2441

約数の個数: 32

約数和(自身を含む): 944326656

約数和(自身を除く): 302325699

約数列:

[1, 3, 13, 39, 71, 103, 213, 309, 923, 1339, 2251, 2769, 4017, 6753, 7313, 21939, 29263, 87789, 95069, 159821, 231853, 285207, 479463, 695559, 2077673, 3014089, 6233019, 9042267, 16461563, 49384689, 214000319, 642000957]

約数ペア:

[(1, 642000957), (3, 214000319), (13, 49384689), (39, 16461563), (71, 9042267), (103, 6233019), (213, 3014089), (309, 2077673), (923, 695559), (1339, 479463), (2251, 285207), (2769, 231853), (4017, 159821), (6753, 95069), (7313, 87789), (21939, 29263)]