19712559

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1669}}^1$

素因数の和:1830

約数の個数: 16

約数和(自身を含む): 27361280

約数和(自身を除く): 7648721

約数列:

[1, 3, 31, 93, 127, 381, 1669, 3937, 5007, 11811, 51739, 155217, 211963, 635889, 6570853, 19712559]

約数ペア:

[(1, 19712559), (3, 6570853), (31, 635889), (93, 211963), (127, 155217), (381, 51739), (1669, 11811), (3937, 5007)]