18781659

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{733}}^1$

素因数の和:828

約数の個数: 32

約数和(自身を含む): 30416960

約数和(自身を除く): 11635301

約数列:

[1, 3, 9, 13, 27, 39, 73, 117, 219, 351, 657, 733, 949, 1971, 2199, 2847, 6597, 8541, 9529, 19791, 25623, 28587, 53509, 85761, 160527, 257283, 481581, 695617, 1444743, 2086851, 6260553, 18781659]

約数ペア:

[(1, 18781659), (3, 6260553), (9, 2086851), (13, 1444743), (27, 695617), (39, 481581), (73, 257283), (117, 160527), (219, 85761), (351, 53509), (657, 28587), (733, 25623), (949, 19791), (1971, 9529), (2199, 8541), (2847, 6597)]