21123078

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 47770560

約数和(自身を除く): 26647482

約数列:

[1, 2, 3, 6, 17, 29, 34, 37, 51, 58, 74, 87, 102, 111, 174, 193, 222, 386, 493, 579, 629, 986, 1073, 1158, 1258, 1479, 1887, 2146, 2958, 3219, 3281, 3774, 5597, 6438, 6562, 7141, 9843, 11194, 14282, 16791, 18241, 19686, 21423, 33582, 36482, 42846, 54723, 95149, 109446, 121397, 190298, 207089, 242794, 285447, 364191, 414178, 570894, 621267, 728382, 1242534, 3520513, 7041026, 10561539, 21123078]

約数ペア:

[(1, 21123078), (2, 10561539), (3, 7041026), (6, 3520513), (17, 1242534), (29, 728382), (34, 621267), (37, 570894), (51, 414178), (58, 364191), (74, 285447), (87, 242794), (102, 207089), (111, 190298), (174, 121397), (193, 109446), (222, 95149), (386, 54723), (493, 42846), (579, 36482), (629, 33582), (986, 21423), (1073, 19686), (1158, 18241), (1258, 16791), (1479, 14282), (1887, 11194), (2146, 9843), (2958, 7141), (3219, 6562), (3281, 6438), (3774, 5597)]