20407835

素因数分解:

$5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{4451}}^1$

素因数の和:4594

約数の個数: 16

約数和(自身を含む): 28207872

約数和(自身を除く): 7800037

約数列:

[1, 5, 7, 35, 131, 655, 917, 4451, 4585, 22255, 31157, 155785, 583081, 2915405, 4081567, 20407835]

約数ペア:

[(1, 20407835), (5, 4081567), (7, 2915405), (35, 583081), (131, 155785), (655, 31157), (917, 22255), (4451, 4585)]