20199963007

素因数分解:

$7^2\times {\mathrm{107}}^2\times {\mathrm{36007}}^1$

素因数の和:36235

約数の個数: 18

約数和(自身を含む): 23720233992

約数和(自身を除く): 3520270985

約数列:

[1, 7, 49, 107, 749, 5243, 11449, 36007, 80143, 252049, 561001, 1764343, 3852749, 26969243, 188784701, 412244143, 2885709001, 20199963007]

約数ペア:

[(1, 20199963007), (7, 2885709001), (49, 412244143), (107, 188784701), (749, 26969243), (5243, 3852749), (11449, 1764343), (36007, 561001), (80143, 252049)]