21020996888

素因数分解:

$2^3\times {\mathrm{739}}^1\times {\mathrm{3555649}}^1$

素因数の和:3556394

約数の個数: 16

約数和(自身を含む): 39467715000

約数和(自身を除く): 18446718112

約数列:

[1, 2, 4, 8, 739, 1478, 2956, 5912, 3555649, 7111298, 14222596, 28445192, 2627624611, 5255249222, 10510498444, 21020996888]

約数ペア:

[(1, 21020996888), (2, 10510498444), (4, 5255249222), (8, 2627624611), (739, 28445192), (1478, 14222596), (2956, 7111298), (5912, 3555649)]