21427684

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{2267}}^1$

素因数の和:2427

約数の個数: 24

約数和(自身を含む): 40007520

約数和(自身を除く): 18579836

約数列:

[1, 2, 4, 17, 34, 68, 139, 278, 556, 2267, 2363, 4534, 4726, 9068, 9452, 38539, 77078, 154156, 315113, 630226, 1260452, 5356921, 10713842, 21427684]

約数ペア:

[(1, 21427684), (2, 10713842), (4, 5356921), (17, 1260452), (34, 630226), (68, 315113), (139, 154156), (278, 77078), (556, 38539), (2267, 9452), (2363, 9068), (4534, 4726)]