20872516

素因数分解:

$2^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{5003}}^1$

素因数の和:5163

約数の個数: 24

約数和(自身を含む): 42033600

約数和(自身を除く): 21161084

約数列:

[1, 2, 4, 7, 14, 28, 149, 298, 596, 1043, 2086, 4172, 5003, 10006, 20012, 35021, 70042, 140084, 745447, 1490894, 2981788, 5218129, 10436258, 20872516]

約数ペア:

[(1, 20872516), (2, 10436258), (4, 5218129), (7, 2981788), (14, 1490894), (28, 745447), (149, 140084), (298, 70042), (596, 35021), (1043, 20012), (2086, 10006), (4172, 5003)]