21551117919

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1\times {\mathrm{5413}}^1$

素因数の和:5759

約数の個数: 32

約数和(自身を含む): 29563038720

約数和(自身を除く): 8011920801

約数列:

[1, 3, 79, 107, 157, 237, 321, 471, 5413, 8453, 12403, 16239, 16799, 25359, 37209, 50397, 427627, 579191, 849841, 1282881, 1327121, 1737573, 2549523, 3981363, 45756089, 67137439, 90932987, 137268267, 201412317, 272798961, 7183705973, 21551117919]

約数ペア:

[(1, 21551117919), (3, 7183705973), (79, 272798961), (107, 201412317), (157, 137268267), (237, 90932987), (321, 67137439), (471, 45756089), (5413, 3981363), (8453, 2549523), (12403, 1737573), (16239, 1327121), (16799, 1282881), (25359, 849841), (37209, 579191), (50397, 427627)]