21059691

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{1307}}^1$

素因数の和:1482

約数の個数: 16

約数和(自身を含む): 29006208

約数和(自身を除く): 7946517

約数列:

[1, 3, 41, 123, 131, 393, 1307, 3921, 5371, 16113, 53587, 160761, 171217, 513651, 7019897, 21059691]

約数ペア:

[(1, 21059691), (3, 7019897), (41, 513651), (123, 171217), (131, 160761), (393, 53587), (1307, 16113), (3921, 5371)]