20507284

素因数分解:

$2^2\times 7^3\times {\mathrm{14947}}^1$

素因数の和:14972

約数の個数: 24

約数和(自身を含む): 41854400

約数和(自身を除く): 21347116

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 14947, 29894, 59788, 104629, 209258, 418516, 732403, 1464806, 2929612, 5126821, 10253642, 20507284]

約数ペア:

[(1, 20507284), (2, 10253642), (4, 5126821), (7, 2929612), (14, 1464806), (28, 732403), (49, 418516), (98, 209258), (196, 104629), (343, 59788), (686, 29894), (1372, 14947)]