28904659

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:307

約数の個数: 24

約数和(自身を含む): 35089200

約数和(自身を除く): 6184541

約数列:

[1, 7, 37, 49, 107, 149, 259, 749, 1043, 1813, 3959, 5243, 5513, 7301, 15943, 27713, 38591, 111601, 193991, 270137, 589891, 781207, 4129237, 28904659]

約数ペア:

[(1, 28904659), (7, 4129237), (37, 781207), (49, 589891), (107, 270137), (149, 193991), (259, 111601), (749, 38591), (1043, 27713), (1813, 15943), (3959, 7301), (5243, 5513)]