28685991

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{21881}}^1$

素因数の和:21926

約数の個数: 16

約数和(自身を含む): 42013440

約数和(自身を除く): 13327449

約数列:

[1, 3, 19, 23, 57, 69, 437, 1311, 21881, 65643, 415739, 503263, 1247217, 1509789, 9561997, 28685991]

約数ペア:

[(1, 28685991), (3, 9561997), (19, 1509789), (23, 1247217), (57, 503263), (69, 415739), (437, 65643), (1311, 21881)]