18721641

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{8537}}^1$

素因数の和:8600

約数の個数: 16

約数和(自身を含む): 27048384

約数和(自身を除く): 8326743

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 8537, 25611, 145129, 367091, 435387, 1101273, 6240547, 18721641]

約数ペア:

[(1, 18721641), (3, 6240547), (17, 1101273), (43, 435387), (51, 367091), (129, 145129), (731, 25611), (2193, 8537)]