27805981

素因数分解:

$7^4\times {\mathrm{37}}^1\times {\mathrm{313}}^1$

素因数の和:378

約数の個数: 20

約数和(自身を含む): 33421532

約数和(自身を除く): 5615551

約数列:

[1, 7, 37, 49, 259, 313, 343, 1813, 2191, 2401, 11581, 12691, 15337, 81067, 88837, 107359, 567469, 751513, 3972283, 27805981]

約数ペア:

[(1, 27805981), (7, 3972283), (37, 751513), (49, 567469), (259, 107359), (313, 88837), (343, 81067), (1813, 15337), (2191, 12691), (2401, 11581)]