217027993

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{719}}^1$

素因数の和:877

約数の個数: 32

約数和(自身を含む): 278691840

約数和(自身を除く): 61663847

約数列:

[1, 7, 13, 31, 91, 107, 217, 403, 719, 749, 1391, 2821, 3317, 5033, 9347, 9737, 22289, 23219, 43121, 65429, 76933, 156023, 289757, 301847, 538531, 1000129, 2028299, 2384923, 7000903, 16694461, 31003999, 217027993]

約数ペア:

[(1, 217027993), (7, 31003999), (13, 16694461), (31, 7000903), (91, 2384923), (107, 2028299), (217, 1000129), (403, 538531), (719, 301847), (749, 289757), (1391, 156023), (2821, 76933), (3317, 65429), (5033, 43121), (9347, 23219), (9737, 22289)]