27987281

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:453

約数の個数: 24

約数和(自身を含む): 34309440

約数和(自身を除く): 6322159

約数列:

[1, 7, 37, 43, 49, 259, 301, 359, 1591, 1813, 2107, 2513, 11137, 13283, 15437, 17591, 77959, 92981, 108059, 571169, 650867, 756413, 3998183, 27987281]

約数ペア:

[(1, 27987281), (7, 3998183), (37, 756413), (43, 650867), (49, 571169), (259, 108059), (301, 92981), (359, 77959), (1591, 17591), (1813, 15437), (2107, 13283), (2513, 11137)]