20331986

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{1093}}^1$

素因数の和:1297

約数の個数: 16

約数和(自身を含む): 31192128

約数和(自身を除く): 10860142

約数列:

[1, 2, 71, 131, 142, 262, 1093, 2186, 9301, 18602, 77603, 143183, 155206, 286366, 10165993, 20331986]

約数ペア:

[(1, 20331986), (2, 10165993), (71, 286366), (131, 155206), (142, 143183), (262, 77603), (1093, 18602), (2186, 9301)]