21410888

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157433}}^1$

素因数の和:157456

約数の個数: 16

約数和(自身を含む): 42507180

約数和(自身を除く): 21096292

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157433, 314866, 629732, 1259464, 2676361, 5352722, 10705444, 21410888]

約数ペア:

[(1, 21410888), (2, 10705444), (4, 5352722), (8, 2676361), (17, 1259464), (34, 629732), (68, 314866), (136, 157433)]