28261965

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^2\times {\mathrm{1019}}^1$

素因数の和:1113

約数の個数: 24

約数和(自身を含む): 46340640

約数和(自身を除く): 18078675

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 1019, 1849, 3057, 5095, 5547, 9245, 15285, 27735, 43817, 131451, 219085, 657255, 1884131, 5652393, 9420655, 28261965]

約数ペア:

[(1, 28261965), (3, 9420655), (5, 5652393), (15, 1884131), (43, 657255), (129, 219085), (215, 131451), (645, 43817), (1019, 27735), (1849, 15285), (3057, 9245), (5095, 5547)]