20375691

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18307}}^1$

素因数の和:18370

約数の個数: 16

約数和(自身を含む): 31636224

約数和(自身を除く): 11260533

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 18307, 54921, 128149, 384447, 970271, 2910813, 6791897, 20375691]

約数ペア:

[(1, 20375691), (3, 6791897), (7, 2910813), (21, 970271), (53, 384447), (159, 128149), (371, 54921), (1113, 18307)]