19858986

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{491}}^1$

素因数の和:616

約数の個数: 64

約数和(自身を含む): 51010560

約数和(自身を除く): 31151574

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 107, 126, 189, 214, 321, 378, 491, 642, 749, 963, 982, 1473, 1498, 1926, 2247, 2889, 2946, 3437, 4419, 4494, 5778, 6741, 6874, 8838, 10311, 13257, 13482, 20223, 20622, 26514, 30933, 40446, 52537, 61866, 92799, 105074, 157611, 185598, 315222, 367759, 472833, 735518, 945666, 1103277, 1418499, 2206554, 2836998, 3309831, 6619662, 9929493, 19858986]

約数ペア:

[(1, 19858986), (2, 9929493), (3, 6619662), (6, 3309831), (7, 2836998), (9, 2206554), (14, 1418499), (18, 1103277), (21, 945666), (27, 735518), (42, 472833), (54, 367759), (63, 315222), (107, 185598), (126, 157611), (189, 105074), (214, 92799), (321, 61866), (378, 52537), (491, 40446), (642, 30933), (749, 26514), (963, 20622), (982, 20223), (1473, 13482), (1498, 13257), (1926, 10311), (2247, 8838), (2889, 6874), (2946, 6741), (3437, 5778), (4419, 4494)]