28866243

素因数分解:

$3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1499}}^1$

素因数の和:1647

約数の個数: 24

約数和(自身を含む): 45144000

約数和(自身を除く): 16277757

約数列:

[1, 3, 7, 21, 49, 131, 147, 393, 917, 1499, 2751, 4497, 6419, 10493, 19257, 31479, 73451, 196369, 220353, 589107, 1374583, 4123749, 9622081, 28866243]

約数ペア:

[(1, 28866243), (3, 9622081), (7, 4123749), (21, 1374583), (49, 589107), (131, 220353), (147, 196369), (393, 73451), (917, 31479), (1499, 19257), (2751, 10493), (4497, 6419)]