28200015

素因数分解:

$3^3\times 5^1\times {\mathrm{208889}}^1$

素因数の和:208903

約数の個数: 16

約数和(自身を含む): 50133600

約数和(自身を除く): 21933585

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 208889, 626667, 1044445, 1880001, 3133335, 5640003, 9400005, 28200015]

約数ペア:

[(1, 28200015), (3, 9400005), (5, 5640003), (9, 3133335), (15, 1880001), (27, 1044445), (45, 626667), (135, 208889)]