20974305

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{401}}^1$

素因数の和:737

約数の個数: 32

約数和(自身を含む): 36816768

約数和(自身を除く): 15842463

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 317, 401, 951, 1203, 1585, 2005, 3487, 4411, 4755, 6015, 10461, 13233, 17435, 22055, 52305, 66165, 127117, 381351, 635585, 1398287, 1906755, 4194861, 6991435, 20974305]

約数ペア:

[(1, 20974305), (3, 6991435), (5, 4194861), (11, 1906755), (15, 1398287), (33, 635585), (55, 381351), (165, 127117), (317, 66165), (401, 52305), (951, 22055), (1203, 17435), (1585, 13233), (2005, 10461), (3487, 6015), (4411, 4755)]