28540197

素因数分解:

$3^2\times 7^2\times {\mathrm{64717}}^1$

素因数の和:64737

約数の個数: 18

約数和(自身を含む): 47956038

約数和(自身を除く): 19415841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 64717, 194151, 453019, 582453, 1359057, 3171133, 4077171, 9513399, 28540197]

約数ペア:

[(1, 28540197), (3, 9513399), (7, 4077171), (9, 3171133), (21, 1359057), (49, 582453), (63, 453019), (147, 194151), (441, 64717)]