21793255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{3847}}^1$

素因数の和:3966

約数の個数: 16

約数和(自身を含む): 28813824

約数和(自身を除く): 7020569

約数列:

[1, 5, 11, 55, 103, 515, 1133, 3847, 5665, 19235, 42317, 211585, 396241, 1981205, 4358651, 21793255]

約数ペア:

[(1, 21793255), (5, 4358651), (11, 1981205), (55, 396241), (103, 211585), (515, 42317), (1133, 19235), (3847, 5665)]