20434581

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{283}}^1$

素因数の和:473

約数の個数: 24

約数和(自身を含む): 30303936

約数和(自身を除く): 9869355

約数列:

[1, 3, 9, 71, 113, 213, 283, 339, 639, 849, 1017, 2547, 8023, 20093, 24069, 31979, 60279, 72207, 95937, 180837, 287811, 2270509, 6811527, 20434581]

約数ペア:

[(1, 20434581), (3, 6811527), (9, 2270509), (71, 287811), (113, 180837), (213, 95937), (283, 72207), (339, 60279), (639, 31979), (849, 24069), (1017, 20093), (2547, 8023)]