20408085

素因数分解:

$3^3\times 5^1\times {\mathrm{151171}}^1$

素因数の和:151185

約数の個数: 16

約数和(自身を含む): 36281280

約数和(自身を除く): 15873195

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 151171, 453513, 755855, 1360539, 2267565, 4081617, 6802695, 20408085]

約数ペア:

[(1, 20408085), (3, 6802695), (5, 4081617), (9, 2267565), (15, 1360539), (27, 755855), (45, 453513), (135, 151171)]