20547116

素因数分解:

$2^2\times {\mathrm{71}}^2\times {\mathrm{1019}}^1$

素因数の和:1165

約数の個数: 18

約数和(自身を含む): 36506820

約数和(自身を除く): 15959704

約数列:

[1, 2, 4, 71, 142, 284, 1019, 2038, 4076, 5041, 10082, 20164, 72349, 144698, 289396, 5136779, 10273558, 20547116]

約数ペア:

[(1, 20547116), (2, 10273558), (4, 5136779), (71, 289396), (142, 144698), (284, 72349), (1019, 20164), (2038, 10082), (4076, 5041)]