20177913

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{25969}}^1$

素因数の和:26016

約数の個数: 16

約数和(自身を含む): 31579520

約数和(自身を除く): 11401607

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 25969, 77907, 181783, 545349, 960853, 2882559, 6725971, 20177913]

約数ペア:

[(1, 20177913), (3, 6725971), (7, 2882559), (21, 960853), (37, 545349), (111, 181783), (259, 77907), (777, 25969)]