19743724

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4931}}^1$

素因数の和:4966

約数の個数: 48

約数和(自身を含む): 46400256

約数和(自身を除く): 26656532

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 4931, 9862, 19724, 34517, 54241, 64103, 69034, 108482, 128206, 138068, 216964, 256412, 379687, 448721, 705133, 759374, 897442, 1410266, 1518748, 1794884, 2820532, 4935931, 9871862, 19743724]

約数ペア:

[(1, 19743724), (2, 9871862), (4, 4935931), (7, 2820532), (11, 1794884), (13, 1518748), (14, 1410266), (22, 897442), (26, 759374), (28, 705133), (44, 448721), (52, 379687), (77, 256412), (91, 216964), (143, 138068), (154, 128206), (182, 108482), (286, 69034), (308, 64103), (364, 54241), (572, 34517), (1001, 19724), (2002, 9862), (4004, 4931)]