28915389

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1223}}^1$

素因数の和:1337

約数の個数: 24

約数和(自身を含む): 43535232

約数和(自身を除く): 14619843

約数列:

[1, 3, 9, 37, 71, 111, 213, 333, 639, 1223, 2627, 3669, 7881, 11007, 23643, 45251, 86833, 135753, 260499, 407259, 781497, 3212821, 9638463, 28915389]

約数ペア:

[(1, 28915389), (3, 9638463), (9, 3212821), (37, 781497), (71, 407259), (111, 260499), (213, 135753), (333, 86833), (639, 45251), (1223, 23643), (2627, 11007), (3669, 7881)]