1388430043

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28307}}^1$

素因数の和:28352

約数の個数: 32

約数和(自身を含む): 1902297600

約数和(自身を除く): 513867557

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 343, 539, 637, 1001, 3773, 4459, 7007, 28307, 49049, 198149, 311377, 367991, 1387043, 2179639, 2575937, 4047901, 9709301, 15257473, 18031559, 28335307, 106802311, 126220913, 198347149, 1388430043]

約数ペア:

[(1, 1388430043), (7, 198347149), (11, 126220913), (13, 106802311), (49, 28335307), (77, 18031559), (91, 15257473), (143, 9709301), (343, 4047901), (539, 2575937), (637, 2179639), (1001, 1387043), (3773, 367991), (4459, 311377), (7007, 198149), (28307, 49049)]