28738935

素因数分解:

$3^3\times 5^1\times {\mathrm{212881}}^1$

素因数の和:212895

約数の個数: 16

約数和(自身を含む): 51091680

約数和(自身を除く): 22352745

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 212881, 638643, 1064405, 1915929, 3193215, 5747787, 9579645, 28738935]

約数ペア:

[(1, 28738935), (3, 9579645), (5, 5747787), (9, 3193215), (15, 1915929), (27, 1064405), (45, 638643), (135, 212881)]