20561128

素因数分解:

$2^3\times 7^1\times {\mathrm{367163}}^1$

素因数の和:367176

約数の個数: 16

約数和(自身を含む): 44059680

約数和(自身を除く): 23498552

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 367163, 734326, 1468652, 2570141, 2937304, 5140282, 10280564, 20561128]

約数ペア:

[(1, 20561128), (2, 10280564), (4, 5140282), (7, 2937304), (8, 2570141), (14, 1468652), (28, 734326), (56, 367163)]