20867084

素因数分解:

$2^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{2381}}^1$

素因数の和:2705

約数の個数: 24

約数和(自身を含む): 41885088

約数和(自身を除く): 21018004

約数列:

[1, 2, 4, 7, 14, 28, 313, 626, 1252, 2191, 2381, 4382, 4762, 8764, 9524, 16667, 33334, 66668, 745253, 1490506, 2981012, 5216771, 10433542, 20867084]

約数ペア:

[(1, 20867084), (2, 10433542), (4, 5216771), (7, 2981012), (14, 1490506), (28, 745253), (313, 66668), (626, 33334), (1252, 16667), (2191, 9524), (2381, 8764), (4382, 4762)]