20964286

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^2\times {\mathrm{281}}^1$

素因数の和:436

約数の個数: 24

約数和(自身を含む): 36567504

約数和(自身を除く): 15603218

約数列:

[1, 2, 7, 14, 73, 146, 281, 511, 562, 1022, 1967, 3934, 5329, 10658, 20513, 37303, 41026, 74606, 143591, 287182, 1497449, 2994898, 10482143, 20964286]

約数ペア:

[(1, 20964286), (2, 10482143), (7, 2994898), (14, 1497449), (73, 287182), (146, 143591), (281, 74606), (511, 41026), (562, 37303), (1022, 20513), (1967, 10658), (3934, 5329)]