21000888021

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{1344401}}^1$

素因数の和:1344572

約数の個数: 16

約数和(自身を含む): 28910020608

約数和(自身を除く): 7909132587

約数列:

[1, 3, 41, 123, 127, 381, 5207, 15621, 1344401, 4033203, 55120441, 165361323, 170738927, 512216781, 7000296007, 21000888021]

約数ペア:

[(1, 21000888021), (3, 7000296007), (41, 512216781), (123, 170738927), (127, 165361323), (381, 55120441), (5207, 4033203), (15621, 1344401)]