20761916

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{313}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 43889664

約数和(自身を除く): 23127748

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 103, 161, 206, 313, 322, 412, 626, 644, 721, 1252, 1442, 2191, 2369, 2884, 4382, 4738, 7199, 8764, 9476, 14398, 16583, 28796, 32239, 33166, 50393, 64478, 66332, 100786, 128956, 201572, 225673, 451346, 741497, 902692, 1482994, 2965988, 5190479, 10380958, 20761916]

約数ペア:

[(1, 20761916), (2, 10380958), (4, 5190479), (7, 2965988), (14, 1482994), (23, 902692), (28, 741497), (46, 451346), (92, 225673), (103, 201572), (161, 128956), (206, 100786), (313, 66332), (322, 64478), (412, 50393), (626, 33166), (644, 32239), (721, 28796), (1252, 16583), (1442, 14398), (2191, 9476), (2369, 8764), (2884, 7199), (4382, 4738)]