21760017

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{3257}}^1$

素因数の和:3408

約数の個数: 16

約数和(自身を含む): 30964032

約数和(自身を除く): 9204015

約数列:

[1, 3, 17, 51, 131, 393, 2227, 3257, 6681, 9771, 55369, 166107, 426667, 1280001, 7253339, 21760017]

約数ペア:

[(1, 21760017), (3, 7253339), (17, 1280001), (51, 426667), (131, 166107), (393, 55369), (2227, 9771), (3257, 6681)]