28940787

素因数分解:

$3^3\times {\mathrm{643}}^1\times {\mathrm{1667}}^1$

素因数の和:2319

約数の個数: 16

約数和(自身を含む): 42967680

約数和(自身を除く): 14026893

約数列:

[1, 3, 9, 27, 643, 1667, 1929, 5001, 5787, 15003, 17361, 45009, 1071881, 3215643, 9646929, 28940787]

約数ペア:

[(1, 28940787), (3, 9646929), (9, 3215643), (27, 1071881), (643, 45009), (1667, 17361), (1929, 15003), (5001, 5787)]