28728135

素因数分解:

$3^3\times 5^1\times {\mathrm{212801}}^1$

素因数の和:212815

約数の個数: 16

約数和(自身を含む): 51072480

約数和(自身を除く): 22344345

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 212801, 638403, 1064005, 1915209, 3192015, 5745627, 9576045, 28728135]

約数ペア:

[(1, 28728135), (3, 9576045), (5, 5745627), (9, 3192015), (15, 1915209), (27, 1064005), (45, 638403), (135, 212801)]