20604555

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6449}}^1$

素因数の和:6531

約数の個数: 24

約数和(自身を含む): 36223200

約数和(自身を除く): 15618645

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 6449, 19347, 32245, 58041, 96735, 290205, 457879, 1373637, 2289395, 4120911, 6868185, 20604555]

約数ペア:

[(1, 20604555), (3, 6868185), (5, 4120911), (9, 2289395), (15, 1373637), (45, 457879), (71, 290205), (213, 96735), (355, 58041), (639, 32245), (1065, 19347), (3195, 6449)]