28787751

素因数分解:

$3^3\times {\mathrm{691}}^1\times {\mathrm{1543}}^1$

素因数の和:2243

約数の個数: 16

約数和(自身を含む): 42737920

約数和(自身を除く): 13950169

約数列:

[1, 3, 9, 27, 691, 1543, 2073, 4629, 6219, 13887, 18657, 41661, 1066213, 3198639, 9595917, 28787751]

約数ペア:

[(1, 28787751), (3, 9595917), (9, 3198639), (27, 1066213), (691, 41661), (1543, 18657), (2073, 13887), (4629, 6219)]