21069748

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{32717}}^1$

素因数の和:32751

約数の個数: 24

約数和(自身を含む): 43972992

約数和(自身を除く): 22903244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 32717, 65434, 130868, 229019, 458038, 752491, 916076, 1504982, 3009964, 5267437, 10534874, 21069748]

約数ペア:

[(1, 21069748), (2, 10534874), (4, 5267437), (7, 3009964), (14, 1504982), (23, 916076), (28, 752491), (46, 458038), (92, 229019), (161, 130868), (322, 65434), (644, 32717)]