28979427

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{3881}}^1$

素因数の和:4034

約数の個数: 16

約数和(自身を含む): 40993920

約数和(自身を除く): 12014493

約数列:

[1, 3, 19, 57, 131, 393, 2489, 3881, 7467, 11643, 73739, 221217, 508411, 1525233, 9659809, 28979427]

約数ペア:

[(1, 28979427), (3, 9659809), (19, 1525233), (57, 508411), (131, 221217), (393, 73739), (2489, 11643), (3881, 7467)]