21909033

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4133}}^1$

素因数の和:4189

約数の個数: 24

約数和(自身を含む): 34394880

約数和(自身を除く): 12485847

約数列:

[1, 3, 9, 19, 31, 57, 93, 171, 279, 589, 1767, 4133, 5301, 12399, 37197, 78527, 128123, 235581, 384369, 706743, 1153107, 2434337, 7303011, 21909033]

約数ペア:

[(1, 21909033), (3, 7303011), (9, 2434337), (19, 1153107), (31, 706743), (57, 384369), (93, 235581), (171, 128123), (279, 78527), (589, 37197), (1767, 12399), (4133, 5301)]