28247697

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{5717}}^1$

素因数の和:5790

約数の個数: 20

約数和(自身を含む): 42896436

約数和(自身を除く): 14648739

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 5717, 17151, 51453, 154359, 348737, 463077, 1046211, 3138633, 9415899, 28247697]

約数ペア:

[(1, 28247697), (3, 9415899), (9, 3138633), (27, 1046211), (61, 463077), (81, 348737), (183, 154359), (549, 51453), (1647, 17151), (4941, 5717)]