20339368

素因数分解:

$2^3\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1381}}^1$

素因数の和:1657

約数の個数: 32

約数和(自身を含む): 43781760

約数和(自身を除く): 23442392

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 263, 526, 1052, 1381, 1841, 2104, 2762, 3682, 5524, 7364, 9667, 11048, 14728, 19334, 38668, 77336, 363203, 726406, 1452812, 2542421, 2905624, 5084842, 10169684, 20339368]

約数ペア:

[(1, 20339368), (2, 10169684), (4, 5084842), (7, 2905624), (8, 2542421), (14, 1452812), (28, 726406), (56, 363203), (263, 77336), (526, 38668), (1052, 19334), (1381, 14728), (1841, 11048), (2104, 9667), (2762, 7364), (3682, 5524)]