27780831

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12497}}^1$

素因数の和:12535

約数の個数: 24

約数和(自身を含む): 45492720

約数和(自身を除く): 17711889

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 12497, 37491, 112473, 162461, 237443, 487383, 712329, 1462149, 2136987, 3086759, 9260277, 27780831]

約数ペア:

[(1, 27780831), (3, 9260277), (9, 3086759), (13, 2136987), (19, 1462149), (39, 712329), (57, 487383), (117, 237443), (171, 162461), (247, 112473), (741, 37491), (2223, 12497)]