21267631

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{14537}}^1$

素因数の和:14574

約数の個数: 16

約数和(自身を含む): 27912960

約数和(自身を除く): 6645329

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 14537, 101759, 159907, 276203, 1119349, 1933421, 3038233, 21267631]

約数ペア:

[(1, 21267631), (7, 3038233), (11, 1933421), (19, 1119349), (77, 276203), (133, 159907), (209, 101759), (1463, 14537)]