248974999

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 313657344

約数和(自身を除く): 64682345

約数列:

[1, 7, 13, 91, 101, 103, 263, 707, 721, 1313, 1339, 1841, 3419, 9191, 9373, 10403, 23933, 26563, 27089, 72821, 135239, 185941, 189623, 345319, 352157, 946673, 2417233, 2465099, 2735989, 19151923, 35567857, 248974999]

約数ペア:

[(1, 248974999), (7, 35567857), (13, 19151923), (91, 2735989), (101, 2465099), (103, 2417233), (263, 946673), (707, 352157), (721, 345319), (1313, 189623), (1339, 185941), (1841, 135239), (3419, 72821), (9191, 27089), (9373, 26563), (10403, 23933)]