18142995

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 33361632

約数和(自身を除く): 15218637

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 169, 195, 221, 255, 421, 507, 663, 845, 1105, 1263, 2105, 2535, 2873, 3315, 5473, 6315, 7157, 8619, 14365, 16419, 21471, 27365, 35785, 43095, 71149, 82095, 93041, 107355, 213447, 279123, 355745, 465205, 1067235, 1209533, 1395615, 3628599, 6047665, 18142995]

約数ペア:

[(1, 18142995), (3, 6047665), (5, 3628599), (13, 1395615), (15, 1209533), (17, 1067235), (39, 465205), (51, 355745), (65, 279123), (85, 213447), (169, 107355), (195, 93041), (221, 82095), (255, 71149), (421, 43095), (507, 35785), (663, 27365), (845, 21471), (1105, 16419), (1263, 14365), (2105, 8619), (2535, 7157), (2873, 6315), (3315, 5473)]