217866467

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{7649}}^1$

素因数の和:7982

約数の個数: 16

約数和(自身を含む): 269035200

約数和(自身を除く): 51168733

約数列:

[1, 7, 13, 91, 313, 2191, 4069, 7649, 28483, 53543, 99437, 696059, 2394137, 16758959, 31123781, 217866467]

約数ペア:

[(1, 217866467), (7, 31123781), (13, 16758959), (91, 2394137), (313, 696059), (2191, 99437), (4069, 53543), (7649, 28483)]