19810233201

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3571}}^1\times {\mathrm{7309}}^1$

素因数の和:10917

約数の個数: 32

約数和(自身を含む): 30080240640

約数和(自身を除く): 10270007439

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 3571, 7309, 10713, 21927, 39281, 80399, 82133, 117843, 168107, 241197, 246399, 504321, 903463, 1849177, 2710389, 5547531, 26100439, 78301317, 287104829, 600310097, 861314487, 1800930291, 6603411067, 19810233201]

約数ペア:

[(1, 19810233201), (3, 6603411067), (11, 1800930291), (23, 861314487), (33, 600310097), (69, 287104829), (253, 78301317), (759, 26100439), (3571, 5547531), (7309, 2710389), (10713, 1849177), (21927, 903463), (39281, 504321), (80399, 246399), (82133, 241197), (117843, 168107)]