21332410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2179}}^1$

素因数の和:2286

約数の個数: 32

約数和(自身を含む): 42379200

約数和(自身を除く): 21046790

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 2179, 4358, 4895, 9790, 10895, 21790, 23969, 47938, 119845, 193931, 239690, 387862, 969655, 1939310, 2133241, 4266482, 10666205, 21332410]

約数ペア:

[(1, 21332410), (2, 10666205), (5, 4266482), (10, 2133241), (11, 1939310), (22, 969655), (55, 387862), (89, 239690), (110, 193931), (178, 119845), (445, 47938), (890, 23969), (979, 21790), (1958, 10895), (2179, 9790), (4358, 4895)]