128662401

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{56209}}^1$

素因数の和:56328

約数の個数: 16

約数和(自身を含む): 197859200

約数和(自身を除く): 69196799

約数列:

[1, 3, 7, 21, 109, 327, 763, 2289, 56209, 168627, 393463, 1180389, 6126781, 18380343, 42887467, 128662401]

約数ペア:

[(1, 128662401), (3, 42887467), (7, 18380343), (21, 6126781), (109, 1180389), (327, 393463), (763, 168627), (2289, 56209)]