21264221

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{349}}^1$

素因数の和:580

約数の個数: 16

約数和(自身を含む): 24192000

約数和(自身を除く): 2927779

約数列:

[1, 11, 29, 191, 319, 349, 2101, 3839, 5539, 10121, 60929, 66659, 111331, 733249, 1933111, 21264221]

約数ペア:

[(1, 21264221), (11, 1933111), (29, 733249), (191, 111331), (319, 66659), (349, 60929), (2101, 10121), (3839, 5539)]