20729576

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11941}}^1$

素因数の和:11985

約数の個数: 32

約数和(自身を含む): 45857280

約数和(自身を除く): 25127704

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 11941, 23882, 47764, 83587, 95528, 167174, 334348, 370171, 668696, 740342, 1480684, 2591197, 2961368, 5182394, 10364788, 20729576]

約数ペア:

[(1, 20729576), (2, 10364788), (4, 5182394), (7, 2961368), (8, 2591197), (14, 1480684), (28, 740342), (31, 668696), (56, 370171), (62, 334348), (124, 167174), (217, 95528), (248, 83587), (434, 47764), (868, 23882), (1736, 11941)]