20409311

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{281}}^1$

素因数の和:482

約数の個数: 16

約数和(自身を含む): 22803648

約数和(自身を除く): 2394337

約数列:

[1, 13, 37, 151, 281, 481, 1963, 3653, 5587, 10397, 42431, 72631, 135161, 551603, 1569947, 20409311]

約数ペア:

[(1, 20409311), (13, 1569947), (37, 551603), (151, 135161), (281, 72631), (481, 42431), (1963, 10397), (3653, 5587)]