15721799121

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{241}}^1\times {\mathrm{3583}}^1$

素因数の和:3871

約数の個数: 72

約数和(自身を含む): 27692048384

約数和(自身を除く): 11970249263

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 241, 289, 357, 723, 867, 1071, 1687, 2023, 2169, 2601, 3583, 4097, 5061, 6069, 10749, 12291, 15183, 18207, 25081, 28679, 32247, 36873, 60911, 69649, 75243, 86037, 182733, 208947, 225729, 258111, 426377, 487543, 548199, 626841, 863503, 1035487, 1279131, 1462629, 2590509, 3106461, 3837393, 4387887, 6044521, 7248409, 7771527, 9319383, 14679551, 18133563, 21745227, 44038653, 54400689, 65235681, 102756857, 132115959, 249552367, 308270571, 748657101, 924811713, 1746866569, 2245971303, 5240599707, 15721799121]

約数ペア:

[(1, 15721799121), (3, 5240599707), (7, 2245971303), (9, 1746866569), (17, 924811713), (21, 748657101), (51, 308270571), (63, 249552367), (119, 132115959), (153, 102756857), (241, 65235681), (289, 54400689), (357, 44038653), (723, 21745227), (867, 18133563), (1071, 14679551), (1687, 9319383), (2023, 7771527), (2169, 7248409), (2601, 6044521), (3583, 4387887), (4097, 3837393), (5061, 3106461), (6069, 2590509), (10749, 1462629), (12291, 1279131), (15183, 1035487), (18207, 863503), (25081, 626841), (28679, 548199), (32247, 487543), (36873, 426377), (60911, 258111), (69649, 225729), (75243, 208947), (86037, 182733)]