208173609

素因数分解:

$3^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{4583}}^1$

素因数の和:4706

約数の個数: 36

約数和(自身を含む): 353261376

約数和(自身を除く): 145087767

約数列:

[1, 3, 7, 9, 21, 49, 63, 103, 147, 309, 441, 721, 927, 2163, 4583, 5047, 6489, 13749, 15141, 32081, 41247, 45423, 96243, 224567, 288729, 472049, 673701, 1416147, 2021103, 3304343, 4248441, 9913029, 23130401, 29739087, 69391203, 208173609]

約数ペア:

[(1, 208173609), (3, 69391203), (7, 29739087), (9, 23130401), (21, 9913029), (49, 4248441), (63, 3304343), (103, 2021103), (147, 1416147), (309, 673701), (441, 472049), (721, 288729), (927, 224567), (2163, 96243), (4583, 45423), (5047, 41247), (6489, 32081), (13749, 15141)]