20531847

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{42509}}^1$

素因数の和:42542

約数の個数: 16

約数和(自身を含む): 32647680

約数和(自身を除く): 12115833

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 42509, 127527, 297563, 892689, 977707, 2933121, 6843949, 20531847]

約数ペア:

[(1, 20531847), (3, 6843949), (7, 2933121), (21, 977707), (23, 892689), (69, 297563), (161, 127527), (483, 42509)]