21906153

素因数分解:

$3^3\times {\mathrm{503}}^1\times {\mathrm{1613}}^1$

素因数の和:2125

約数の個数: 16

約数和(自身を含む): 32538240

約数和(自身を除く): 10632087

約数列:

[1, 3, 9, 27, 503, 1509, 1613, 4527, 4839, 13581, 14517, 43551, 811339, 2434017, 7302051, 21906153]

約数ペア:

[(1, 21906153), (3, 7302051), (9, 2434017), (27, 811339), (503, 43551), (1509, 14517), (1613, 13581), (4527, 4839)]