19909473

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8123}}^1$

素因数の和:8188

約数の個数: 16

約数和(自身を含む): 28596480

約数和(自身を除く): 8687007

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 8123, 24369, 154337, 349289, 463011, 1047867, 6636491, 19909473]

約数ペア:

[(1, 19909473), (3, 6636491), (19, 1047867), (43, 463011), (57, 349289), (129, 154337), (817, 24369), (2451, 8123)]