20387542

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{23873}}^1$

素因数の和:23943

約数の個数: 16

約数和(自身を含む): 35524512

約数和(自身を除く): 15136970

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 23873, 47746, 167111, 334222, 1456253, 2912506, 10193771, 20387542]

約数ペア:

[(1, 20387542), (2, 10193771), (7, 2912506), (14, 1456253), (61, 334222), (122, 167111), (427, 47746), (854, 23873)]