20913095

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 30385152

約数和(自身を除く): 9472057

約数列:

[1, 5, 7, 23, 35, 83, 115, 161, 313, 415, 581, 805, 1565, 1909, 2191, 2905, 7199, 9545, 10955, 13363, 25979, 35995, 50393, 66815, 129895, 181853, 251965, 597517, 909265, 2987585, 4182619, 20913095]

約数ペア:

[(1, 20913095), (5, 4182619), (7, 2987585), (23, 909265), (35, 597517), (83, 251965), (115, 181853), (161, 129895), (313, 66815), (415, 50393), (581, 35995), (805, 25979), (1565, 13363), (1909, 10955), (2191, 9545), (2905, 7199)]