20587287

素因数分解:

$3^1\times 7^1\times {\mathrm{503}}^1\times {\mathrm{1949}}^1$

素因数の和:2462

約数の個数: 16

約数和(自身を含む): 31449600

約数和(自身を除く): 10862313

約数列:

[1, 3, 7, 21, 503, 1509, 1949, 3521, 5847, 10563, 13643, 40929, 980347, 2941041, 6862429, 20587287]

約数ペア:

[(1, 20587287), (3, 6862429), (7, 2941041), (21, 980347), (503, 40929), (1509, 13643), (1949, 10563), (3521, 5847)]