128257059

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{23581}}^1$

素因数の和:23635

約数の個数: 24

約数和(自身を含む): 204314448

約数和(自身を除く): 76057389

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 5439, 23581, 70743, 165067, 495201, 872497, 1155469, 2617491, 3466407, 6107479, 18322437, 42752353, 128257059]

約数ペア:

[(1, 128257059), (3, 42752353), (7, 18322437), (21, 6107479), (37, 3466407), (49, 2617491), (111, 1155469), (147, 872497), (259, 495201), (777, 165067), (1813, 70743), (5439, 23581)]