18782817

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1\times {\mathrm{313}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 25531968

約数和(自身を除く): 6749151

約数列:

[1, 3, 83, 241, 249, 313, 723, 939, 20003, 25979, 60009, 75433, 77937, 226299, 6260939, 18782817]

約数ペア:

[(1, 18782817), (3, 6260939), (83, 226299), (241, 77937), (249, 75433), (313, 60009), (723, 25979), (939, 20003)]