21987331345

素因数分解:

$5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{883}}^1\times {\mathrm{2273}}^1$

素因数の和:3481

約数の個数: 32

約数和(自身を含む): 30297975552

約数和(自身を除く): 8310644207

約数列:

[1, 5, 7, 35, 313, 883, 1565, 2191, 2273, 4415, 6181, 10955, 11365, 15911, 30905, 79555, 276379, 711449, 1381895, 1934653, 2007059, 3557245, 4980143, 9673265, 10035295, 14049413, 24900715, 70247065, 628209467, 3141047335, 4397466269, 21987331345]

約数ペア:

[(1, 21987331345), (5, 4397466269), (7, 3141047335), (35, 628209467), (313, 70247065), (883, 24900715), (1565, 14049413), (2191, 10035295), (2273, 9673265), (4415, 4980143), (6181, 3557245), (10955, 2007059), (11365, 1934653), (15911, 1381895), (30905, 711449), (79555, 276379)]