2181949

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:720

約数の個数: 16

約数和(自身を含む): 2787840

約数和(自身を除く): 605891

約数列:

[1, 7, 11, 43, 77, 301, 473, 659, 3311, 4613, 7249, 28337, 50743, 198359, 311707, 2181949]

約数ペア:

[(1, 2181949), (7, 311707), (11, 198359), (43, 50743), (77, 28337), (301, 7249), (473, 4613), (659, 3311)]