21664995

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131303}}^1$

素因数の和:131322

約数の個数: 16

約数和(自身を含む): 37815552

約数和(自身を除く): 16150557

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 131303, 393909, 656515, 1444333, 1969545, 4332999, 7221665, 21664995]

約数ペア:

[(1, 21664995), (3, 7221665), (5, 4332999), (11, 1969545), (15, 1444333), (33, 656515), (55, 393909), (165, 131303)]