207778518

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{367}}^1\times {\mathrm{443}}^1$

素因数の和:889

約数の個数: 48

約数和(自身を含む): 458804736

約数和(自身を除く): 251026218

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 367, 426, 443, 639, 734, 886, 1101, 1278, 1329, 2202, 2658, 3303, 3987, 6606, 7974, 26057, 31453, 52114, 62906, 78171, 94359, 156342, 162581, 188718, 234513, 283077, 325162, 469026, 487743, 566154, 975486, 1463229, 2926458, 11543251, 23086502, 34629753, 69259506, 103889259, 207778518]

約数ペア:

[(1, 207778518), (2, 103889259), (3, 69259506), (6, 34629753), (9, 23086502), (18, 11543251), (71, 2926458), (142, 1463229), (213, 975486), (367, 566154), (426, 487743), (443, 469026), (639, 325162), (734, 283077), (886, 234513), (1101, 188718), (1278, 162581), (1329, 156342), (2202, 94359), (2658, 78171), (3303, 62906), (3987, 52114), (6606, 31453), (7974, 26057)]