21322561

素因数分解:

${\mathrm{13}}^2\times {\mathrm{281}}^1\times {\mathrm{449}}^1$

素因数の和:756

約数の個数: 12

約数和(自身を含む): 23222700

約数和(自身を除く): 1900139

約数列:

[1, 13, 169, 281, 449, 3653, 5837, 47489, 75881, 126169, 1640197, 21322561]

約数ペア:

[(1, 21322561), (13, 1640197), (169, 126169), (281, 75881), (449, 47489), (3653, 5837)]