81215823

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{8431}}^1$

素因数の和:8479

約数の個数: 24

約数和(自身を含む): 123444480

約数和(自身を除く): 42228657

約数列:

[1, 3, 13, 19, 39, 57, 169, 247, 507, 741, 3211, 8431, 9633, 25293, 109603, 160189, 328809, 480567, 1424839, 2082457, 4274517, 6247371, 27071941, 81215823]

約数ペア:

[(1, 81215823), (3, 27071941), (13, 6247371), (19, 4274517), (39, 2082457), (57, 1424839), (169, 480567), (247, 328809), (507, 160189), (741, 109603), (3211, 25293), (8431, 9633)]