21420074

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{499}}^1$

素因数の和:654

約数の個数: 24

約数和(自身を含む): 35136000

約数和(自身を除く): 13715926

約数列:

[1, 2, 13, 26, 127, 169, 254, 338, 499, 998, 1651, 3302, 6487, 12974, 21463, 42926, 63373, 84331, 126746, 168662, 823849, 1647698, 10710037, 21420074]

約数ペア:

[(1, 21420074), (2, 10710037), (13, 1647698), (26, 823849), (127, 168662), (169, 126746), (254, 84331), (338, 63373), (499, 42926), (998, 21463), (1651, 12974), (3302, 6487)]