20661909

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{971}}^1$

素因数の和:1188

約数の個数: 16

約数和(自身を含む): 28413504

約数和(自身を除く): 7751595

約数列:

[1, 3, 41, 123, 173, 519, 971, 2913, 7093, 21279, 39811, 119433, 167983, 503949, 6887303, 20661909]

約数ペア:

[(1, 20661909), (3, 6887303), (41, 503949), (123, 167983), (173, 119433), (519, 39811), (971, 21279), (2913, 7093)]