20055847

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 24

約数和(自身を含む): 24418800

約数和(自身を除く): 4362953

約数列:

[1, 7, 41, 49, 67, 149, 287, 469, 1043, 2009, 2747, 3283, 6109, 7301, 9983, 19229, 42763, 69881, 134603, 299341, 409303, 489167, 2865121, 20055847]

約数ペア:

[(1, 20055847), (7, 2865121), (41, 489167), (49, 409303), (67, 299341), (149, 134603), (287, 69881), (469, 42763), (1043, 19229), (2009, 9983), (2747, 7301), (3283, 6109)]