21794421

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{15359}}^1$

素因数の和:15416

約数の個数: 16

約数和(自身を含む): 32440320

約数和(自身を除く): 10645899

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 15359, 46077, 168949, 506847, 660437, 1981311, 7264807, 21794421]

約数ペア:

[(1, 21794421), (3, 7264807), (11, 1981311), (33, 660437), (43, 506847), (129, 168949), (473, 46077), (1419, 15359)]