18810484

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 41408640

約数和(自身を除く): 22598156

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 157, 308, 314, 389, 628, 778, 1099, 1556, 1727, 2198, 2723, 3454, 4279, 4396, 5446, 6908, 8558, 10892, 12089, 17116, 24178, 29953, 48356, 59906, 61073, 119812, 122146, 244292, 427511, 671803, 855022, 1343606, 1710044, 2687212, 4702621, 9405242, 18810484]

約数ペア:

[(1, 18810484), (2, 9405242), (4, 4702621), (7, 2687212), (11, 1710044), (14, 1343606), (22, 855022), (28, 671803), (44, 427511), (77, 244292), (154, 122146), (157, 119812), (308, 61073), (314, 59906), (389, 48356), (628, 29953), (778, 24178), (1099, 17116), (1556, 12089), (1727, 10892), (2198, 8558), (2723, 6908), (3454, 5446), (4279, 4396)]