20772818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{673}}^1$

素因数の和:770

約数の個数: 32

約数和(自身を含む): 36104832

約数和(自身を除く): 15332014

約数列:

[1, 2, 11, 22, 23, 46, 61, 122, 253, 506, 671, 673, 1342, 1346, 1403, 2806, 7403, 14806, 15433, 15479, 30866, 30958, 41053, 82106, 170269, 340538, 451583, 903166, 944219, 1888438, 10386409, 20772818]

約数ペア:

[(1, 20772818), (2, 10386409), (11, 1888438), (22, 944219), (23, 903166), (46, 451583), (61, 340538), (122, 170269), (253, 82106), (506, 41053), (671, 30958), (673, 30866), (1342, 15479), (1346, 15433), (1403, 14806), (2806, 7403)]