21643765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{30271}}^1$

素因数の和:30300

約数の個数: 16

約数和(自身を含む): 30514176

約数和(自身を除く): 8870411

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 30271, 151355, 332981, 393523, 1664905, 1967615, 4328753, 21643765]

約数ペア:

[(1, 21643765), (5, 4328753), (11, 1967615), (13, 1664905), (55, 393523), (65, 332981), (143, 151355), (715, 30271)]