28106841

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{2693}}^1$

素因数の和:2781

約数の個数: 24

約数和(自身を含む): 44224704

約数和(自身を除く): 16117863

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 2693, 3479, 8079, 10437, 18851, 56553, 131957, 191203, 395871, 573609, 1338421, 4015263, 9368947, 28106841]

約数ペア:

[(1, 28106841), (3, 9368947), (7, 4015263), (21, 1338421), (49, 573609), (71, 395871), (147, 191203), (213, 131957), (497, 56553), (1491, 18851), (2693, 10437), (3479, 8079)]