9987965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4153}}^1$

素因数の和:4208

約数の個数: 16

約数和(自身を含む): 13259568

約数和(自身を除く): 3271603

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 4153, 20765, 53989, 153661, 269945, 768305, 1997593, 9987965]

約数ペア:

[(1, 9987965), (5, 1997593), (13, 768305), (37, 269945), (65, 153661), (185, 53989), (481, 20765), (2405, 4153)]