16389191

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9479}}^1$

素因数の和:9518

約数の個数: 16

約数和(自身を含む): 21235200

約数和(自身を除く): 4846009

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 9479, 66353, 123227, 180101, 862589, 1260707, 2341313, 16389191]

約数ペア:

[(1, 16389191), (7, 2341313), (13, 1260707), (19, 862589), (91, 180101), (133, 123227), (247, 66353), (1729, 9479)]