21033999

素因数分解:

$3^4\times 7^1\times {\mathrm{37097}}^1$

素因数の和:37116

約数の個数: 20

約数和(自身を含む): 35910864

約数和(自身を除く): 14876865

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37097, 111291, 259679, 333873, 779037, 1001619, 2337111, 3004857, 7011333, 21033999]

約数ペア:

[(1, 21033999), (3, 7011333), (7, 3004857), (9, 2337111), (21, 1001619), (27, 779037), (63, 333873), (81, 259679), (189, 111291), (567, 37097)]