128840697

素因数分解:

$3^2\times {\mathrm{37}}^2\times {\mathrm{10457}}^1$

素因数の和:10537

約数の個数: 18

約数和(自身を含む): 191287278

約数和(自身を除く): 62446581

約数列:

[1, 3, 9, 37, 111, 333, 1369, 4107, 10457, 12321, 31371, 94113, 386909, 1160727, 3482181, 14315633, 42946899, 128840697]

約数ペア:

[(1, 128840697), (3, 42946899), (9, 14315633), (37, 3482181), (111, 1160727), (333, 386909), (1369, 94113), (4107, 31371), (10457, 12321)]