20664465

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{673}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 34940160

約数和(自身を除く): 14275695

約数列:

[1, 3, 5, 15, 23, 69, 89, 115, 267, 345, 445, 673, 1335, 2019, 2047, 3365, 6141, 10095, 10235, 15479, 30705, 46437, 59897, 77395, 179691, 232185, 299485, 898455, 1377631, 4132893, 6888155, 20664465]

約数ペア:

[(1, 20664465), (3, 6888155), (5, 4132893), (15, 1377631), (23, 898455), (69, 299485), (89, 232185), (115, 179691), (267, 77395), (345, 59897), (445, 46437), (673, 30705), (1335, 15479), (2019, 10235), (2047, 10095), (3365, 6141)]