1999697777

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{15749}}^1$

素因数の和:15881

約数の個数: 32

約数和(自身を含む): 2667168000

約数和(自身を除く): 667470223

約数列:

[1, 7, 11, 17, 77, 97, 119, 187, 679, 1067, 1309, 1649, 7469, 11543, 15749, 18139, 110243, 126973, 173239, 267733, 1212673, 1527653, 1874131, 2945063, 10693571, 16804183, 20615441, 25970101, 117629281, 181790707, 285671111, 1999697777]

約数ペア:

[(1, 1999697777), (7, 285671111), (11, 181790707), (17, 117629281), (77, 25970101), (97, 20615441), (119, 16804183), (187, 10693571), (679, 2945063), (1067, 1874131), (1309, 1527653), (1649, 1212673), (7469, 267733), (11543, 173239), (15749, 126973), (18139, 110243)]