16240021

素因数分解:

$7^3\times {\mathrm{113}}^1\times {\mathrm{419}}^1$

素因数の和:553

約数の個数: 16

約数和(自身を含む): 19152000

約数和(自身を除く): 2911979

約数列:

[1, 7, 49, 113, 343, 419, 791, 2933, 5537, 20531, 38759, 47347, 143717, 331429, 2320003, 16240021]

約数ペア:

[(1, 16240021), (7, 2320003), (49, 331429), (113, 143717), (343, 47347), (419, 38759), (791, 20531), (2933, 5537)]