21812

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:71

約数の個数: 24

約数和(自身を含む): 47040

約数和(自身を除く): 25228

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 41, 76, 82, 133, 164, 266, 287, 532, 574, 779, 1148, 1558, 3116, 5453, 10906, 21812]

約数ペア:

[(1, 21812), (2, 10906), (4, 5453), (7, 3116), (14, 1558), (19, 1148), (28, 779), (38, 574), (41, 532), (76, 287), (82, 266), (133, 164)]