20561072

素因数分解:

$2^4\times 7^1\times {\mathrm{183581}}^1$

素因数の和:183596

約数の個数: 20

約数和(自身を含む): 45528336

約数和(自身を除く): 24967264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 183581, 367162, 734324, 1285067, 1468648, 2570134, 2937296, 5140268, 10280536, 20561072]

約数ペア:

[(1, 20561072), (2, 10280536), (4, 5140268), (7, 2937296), (8, 2570134), (14, 1468648), (16, 1285067), (28, 734324), (56, 367162), (112, 183581)]