648320253

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{743}}^1\times {\mathrm{1123}}^1$

素因数の和:1913

約数の個数: 32

約数和(自身を含む): 1016887296

約数和(自身を除く): 368567043

約数列:

[1, 3, 7, 21, 37, 111, 259, 743, 777, 1123, 2229, 3369, 5201, 7861, 15603, 23583, 27491, 41551, 82473, 124653, 192437, 290857, 577311, 834389, 872571, 2503167, 5840723, 17522169, 30872393, 92617179, 216106751, 648320253]

約数ペア:

[(1, 648320253), (3, 216106751), (7, 92617179), (21, 30872393), (37, 17522169), (111, 5840723), (259, 2503167), (743, 872571), (777, 834389), (1123, 577311), (2229, 290857), (3369, 192437), (5201, 124653), (7861, 82473), (15603, 41551), (23583, 27491)]