28745211

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{13001}}^1$

素因数の和:13082

約数の個数: 16

約数和(自身を含む): 42438528

約数和(自身を除く): 13693317

約数列:

[1, 3, 11, 33, 67, 201, 737, 2211, 13001, 39003, 143011, 429033, 871067, 2613201, 9581737, 28745211]

約数ペア:

[(1, 28745211), (3, 9581737), (11, 2613201), (33, 871067), (67, 429033), (201, 143011), (737, 39003), (2211, 13001)]