21223467

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{317}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 31649904

約数和(自身を除く): 10426437

約数列:

[1, 3, 9, 43, 129, 173, 317, 387, 519, 951, 1557, 2853, 7439, 13631, 22317, 40893, 54841, 66951, 122679, 164523, 493569, 2358163, 7074489, 21223467]

約数ペア:

[(1, 21223467), (3, 7074489), (9, 2358163), (43, 493569), (129, 164523), (173, 122679), (317, 66951), (387, 54841), (519, 40893), (951, 22317), (1557, 13631), (2853, 7439)]