21728799

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4099}}^1$

素因数の和:4155

約数の個数: 24

約数和(自身を含む): 34112000

約数和(自身を除く): 12383201

約数列:

[1, 3, 9, 19, 31, 57, 93, 171, 279, 589, 1767, 4099, 5301, 12297, 36891, 77881, 127069, 233643, 381207, 700929, 1143621, 2414311, 7242933, 21728799]

約数ペア:

[(1, 21728799), (3, 7242933), (9, 2414311), (19, 1143621), (31, 700929), (57, 381207), (93, 233643), (171, 127069), (279, 77881), (589, 36891), (1767, 12297), (4099, 5301)]