20198876

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{1213}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 37119264

約数和(自身を除く): 16920388

約数列:

[1, 2, 4, 23, 46, 92, 181, 362, 724, 1213, 2426, 4163, 4852, 8326, 16652, 27899, 55798, 111596, 219553, 439106, 878212, 5049719, 10099438, 20198876]

約数ペア:

[(1, 20198876), (2, 10099438), (4, 5049719), (23, 878212), (46, 439106), (92, 219553), (181, 111596), (362, 55798), (724, 27899), (1213, 16652), (2426, 8326), (4163, 4852)]