18798039

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{727}}^1$

素因数の和:776

約数の個数: 36

約数和(自身を含む): 31174416

約数和(自身を除く): 12376377

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 169, 221, 507, 663, 727, 1521, 1989, 2181, 2873, 6543, 8619, 9451, 12359, 25857, 28353, 37077, 85059, 111231, 122863, 160667, 368589, 482001, 1105767, 1446003, 2088671, 6266013, 18798039]

約数ペア:

[(1, 18798039), (3, 6266013), (9, 2088671), (13, 1446003), (17, 1105767), (39, 482001), (51, 368589), (117, 160667), (153, 122863), (169, 111231), (221, 85059), (507, 37077), (663, 28353), (727, 25857), (1521, 12359), (1989, 9451), (2181, 8619), (2873, 6543)]