211328217

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{128311}}^1$

素因数の和:128381

約数の個数: 16

約数和(自身を含む): 318213760

約数和(自身を除く): 106885543

約数列:

[1, 3, 9, 27, 61, 183, 549, 1647, 128311, 384933, 1154799, 3464397, 7826971, 23480913, 70442739, 211328217]

約数ペア:

[(1, 211328217), (3, 70442739), (9, 23480913), (27, 7826971), (61, 3464397), (183, 1154799), (549, 384933), (1647, 128311)]