28813887

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{2801}}^1$

素因数の和:2940

約数の個数: 20

約数和(自身を含む): 43397376

約数和(自身を除く): 14583489

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 2801, 3429, 8403, 10287, 25209, 75627, 226881, 355727, 1067181, 3201543, 9604629, 28813887]

約数ペア:

[(1, 28813887), (3, 9604629), (9, 3201543), (27, 1067181), (81, 355727), (127, 226881), (381, 75627), (1143, 25209), (2801, 10287), (3429, 8403)]