389636044

素因数分解:

$2^2\times 7^2\times {\mathrm{1987939}}^1$

素因数の和:1987957

約数の個数: 18

約数和(自身を含む): 793188060

約数和(自身を除く): 403552016

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 1987939, 3975878, 7951756, 13915573, 27831146, 55662292, 97409011, 194818022, 389636044]

約数ペア:

[(1, 389636044), (2, 194818022), (4, 97409011), (7, 55662292), (14, 27831146), (28, 13915573), (49, 7951756), (98, 3975878), (196, 1987939)]