20417705

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{293}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 30820608

約数和(自身を除く): 10402903

約数列:

[1, 5, 7, 11, 35, 55, 77, 181, 293, 385, 905, 1267, 1465, 1991, 2051, 3223, 6335, 9955, 10255, 13937, 16115, 22561, 53033, 69685, 112805, 265165, 371231, 583363, 1856155, 2916815, 4083541, 20417705]

約数ペア:

[(1, 20417705), (5, 4083541), (7, 2916815), (11, 1856155), (35, 583363), (55, 371231), (77, 265165), (181, 112805), (293, 69685), (385, 53033), (905, 22561), (1267, 16115), (1465, 13937), (1991, 10255), (2051, 9955), (3223, 6335)]