81611517

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{457}}^1$

素因数の和:733

約数の個数: 32

約数和(自身を含む): 124136320

約数和(自身を除く): 42524803

約数列:

[1, 3, 13, 19, 39, 57, 241, 247, 457, 723, 741, 1371, 3133, 4579, 5941, 8683, 9399, 13737, 17823, 26049, 59527, 110137, 112879, 178581, 330411, 338637, 1431781, 2092603, 4295343, 6277809, 27203839, 81611517]

約数ペア:

[(1, 81611517), (3, 27203839), (13, 6277809), (19, 4295343), (39, 2092603), (57, 1431781), (241, 338637), (247, 330411), (457, 178581), (723, 112879), (741, 110137), (1371, 59527), (3133, 26049), (4579, 17823), (5941, 13737), (8683, 9399)]