121500009

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{1423}}^1$

素因数の和:1661

約数の個数: 24

約数和(自身を含む): 179936640

約数和(自身を除く): 58436631

約数列:

[1, 3, 9, 53, 159, 179, 477, 537, 1423, 1611, 4269, 9487, 12807, 28461, 75419, 85383, 226257, 254717, 678771, 764151, 2292453, 13500001, 40500003, 121500009]

約数ペア:

[(1, 121500009), (3, 40500003), (9, 13500001), (53, 2292453), (159, 764151), (179, 678771), (477, 254717), (537, 226257), (1423, 85383), (1611, 75419), (4269, 28461), (9487, 12807)]