20538477

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{727}}^1$

素因数の和:849

約数の個数: 24

約数和(自身を含む): 30814784

約数和(自身を除く): 10276307

約数列:

[1, 3, 9, 43, 73, 129, 219, 387, 657, 727, 2181, 3139, 6543, 9417, 28251, 31261, 53071, 93783, 159213, 281349, 477639, 2282053, 6846159, 20538477]

約数ペア:

[(1, 20538477), (3, 6846159), (9, 2282053), (43, 477639), (73, 281349), (129, 159213), (219, 93783), (387, 53071), (657, 31261), (727, 28251), (2181, 9417), (3139, 6543)]