20855211

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{809}}^1$

素因数の和:1486

約数の個数: 16

約数和(自身を含む): 30028320

約数和(自身を除く): 9173109

約数列:

[1, 3, 13, 39, 661, 809, 1983, 2427, 8593, 10517, 25779, 31551, 534749, 1604247, 6951737, 20855211]

約数ペア:

[(1, 20855211), (3, 6951737), (13, 1604247), (39, 534749), (661, 31551), (809, 25779), (1983, 10517), (2427, 8593)]