21309021

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{14891}}^1$

素因数の和:14953

約数の個数: 16

約数和(自身を含む): 32166720

約数和(自身を除く): 10857699

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 14891, 44673, 134019, 402057, 789223, 2367669, 7103007, 21309021]

約数ペア:

[(1, 21309021), (3, 7103007), (9, 2367669), (27, 789223), (53, 402057), (159, 134019), (477, 44673), (1431, 14891)]