209913729

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{26881}}^1$

素因数の和:27040

約数の個数: 16

約数和(自身を含む): 296777280

約数和(自身を除く): 86863551

約数列:

[1, 3, 19, 57, 137, 411, 2603, 7809, 26881, 80643, 510739, 1532217, 3682697, 11048091, 69971243, 209913729]

約数ペア:

[(1, 209913729), (3, 69971243), (19, 11048091), (57, 3682697), (137, 1532217), (411, 510739), (2603, 80643), (7809, 26881)]