28200285

素因数分解:

$3^3\times 5^1\times {\mathrm{208891}}^1$

素因数の和:208905

約数の個数: 16

約数和(自身を含む): 50134080

約数和(自身を除く): 21933795

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 208891, 626673, 1044455, 1880019, 3133365, 5640057, 9400095, 28200285]

約数ペア:

[(1, 28200285), (3, 9400095), (5, 5640057), (9, 3133365), (15, 1880019), (27, 1044455), (45, 626673), (135, 208891)]