20450059

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1789}}^1$

素因数の和:1890

約数の個数: 16

約数和(自身を含む): 24744960

約数和(自身を除く): 4294901

約数列:

[1, 7, 23, 71, 161, 497, 1633, 1789, 11431, 12523, 41147, 127019, 288029, 889133, 2921437, 20450059]

約数ペア:

[(1, 20450059), (7, 2921437), (23, 889133), (71, 288029), (161, 127019), (497, 41147), (1633, 12523), (1789, 11431)]