21851559

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{26107}}^1$

素因数の和:26147

約数の個数: 16

約数和(自身を含む): 33418240

約数和(自身を除く): 11566681

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 26107, 78321, 234963, 704889, 809317, 2427951, 7283853, 21851559]

約数ペア:

[(1, 21851559), (3, 7283853), (9, 2427951), (27, 809317), (31, 704889), (93, 234963), (279, 78321), (837, 26107)]