20712874

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1559}}^1$

素因数の和:1654

約数の個数: 32

約数和(自身を含む): 38787840

約数和(自身を除く): 18074966

約数列:

[1, 2, 7, 13, 14, 26, 73, 91, 146, 182, 511, 949, 1022, 1559, 1898, 3118, 6643, 10913, 13286, 20267, 21826, 40534, 113807, 141869, 227614, 283738, 796649, 1479491, 1593298, 2958982, 10356437, 20712874]

約数ペア:

[(1, 20712874), (2, 10356437), (7, 2958982), (13, 1593298), (14, 1479491), (26, 796649), (73, 283738), (91, 227614), (146, 141869), (182, 113807), (511, 40534), (949, 21826), (1022, 20267), (1559, 13286), (1898, 10913), (3118, 6643)]