20425635

素因数分解:

$3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2131}}^1$

素因数の和:2216

約数の個数: 32

約数和(自身を含む): 36840960

約数和(自身を除く): 16415325

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 135, 213, 355, 639, 1065, 1917, 2131, 3195, 6393, 9585, 10655, 19179, 31965, 57537, 95895, 151301, 287685, 453903, 756505, 1361709, 2269515, 4085127, 6808545, 20425635]

約数ペア:

[(1, 20425635), (3, 6808545), (5, 4085127), (9, 2269515), (15, 1361709), (27, 756505), (45, 453903), (71, 287685), (135, 151301), (213, 95895), (355, 57537), (639, 31965), (1065, 19179), (1917, 10655), (2131, 9585), (3195, 6393)]