640067667

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{197369}}^1$

素因数の和:197442

約数の個数: 16

約数和(自身を含む): 909480960

約数和(自身を除く): 269413293

約数列:

[1, 3, 23, 47, 69, 141, 1081, 3243, 197369, 592107, 4539487, 9276343, 13618461, 27829029, 213355889, 640067667]

約数ペア:

[(1, 640067667), (3, 213355889), (23, 27829029), (47, 13618461), (69, 9276343), (141, 4539487), (1081, 592107), (3243, 197369)]