20561654

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{5087}}^1$

素因数の和:5179

約数の個数: 16

約数和(自身を含む): 32237568

約数和(自身を除く): 11675914

約数列:

[1, 2, 43, 47, 86, 94, 2021, 4042, 5087, 10174, 218741, 239089, 437482, 478178, 10280827, 20561654]

約数ペア:

[(1, 20561654), (2, 10280827), (43, 478178), (47, 437482), (86, 239089), (94, 218741), (2021, 10174), (4042, 5087)]