28140921

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{937}}^1$

素因数の和:1061

約数の個数: 24

約数和(自身を含む): 42142464

約数和(自身を除く): 14001543

約数列:

[1, 3, 9, 47, 71, 141, 213, 423, 639, 937, 2811, 3337, 8433, 10011, 30033, 44039, 66527, 132117, 199581, 396351, 598743, 3126769, 9380307, 28140921]

約数ペア:

[(1, 28140921), (3, 9380307), (9, 3126769), (47, 598743), (71, 396351), (141, 199581), (213, 132117), (423, 66527), (639, 44039), (937, 30033), (2811, 10011), (3337, 8433)]