20983790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{110441}}^1$

素因数の和:110467

約数の個数: 16

約数和(自身を含む): 39759120

約数和(自身を除く): 18775330

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 110441, 220882, 552205, 1104410, 2098379, 4196758, 10491895, 20983790]

約数ペア:

[(1, 20983790), (2, 10491895), (5, 4196758), (10, 2098379), (19, 1104410), (38, 552205), (95, 220882), (190, 110441)]