20585648

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{29921}}^1$

素因数の和:29972

約数の個数: 20

約数和(自身を含む): 40813608

約数和(自身を除く): 20227960

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 29921, 59842, 119684, 239368, 478736, 1286603, 2573206, 5146412, 10292824, 20585648]

約数ペア:

[(1, 20585648), (2, 10292824), (4, 5146412), (8, 2573206), (16, 1286603), (43, 478736), (86, 239368), (172, 119684), (344, 59842), (688, 29921)]