19929812

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{16553}}^1$

素因数の和:16607

約数の個数: 24

約数和(自身を含む): 40789056

約数和(自身を除く): 20859244

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 16553, 33106, 66212, 115871, 231742, 463484, 711779, 1423558, 2847116, 4982453, 9964906, 19929812]

約数ペア:

[(1, 19929812), (2, 9964906), (4, 4982453), (7, 2847116), (14, 1423558), (28, 711779), (43, 463484), (86, 231742), (172, 115871), (301, 66212), (602, 33106), (1204, 16553)]