208042905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{1981361}}^1$

素因数の和:1981376

約数の個数: 16

約数和(自身を含む): 380421504

約数和(自身を除く): 172378599

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 1981361, 5944083, 9906805, 13869527, 29720415, 41608581, 69347635, 208042905]

約数ペア:

[(1, 208042905), (3, 69347635), (5, 41608581), (7, 29720415), (15, 13869527), (21, 9906805), (35, 5944083), (105, 1981361)]