20674508

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{1367}}^1$

素因数の和:1589

約数の個数: 24

約数和(自身を含む): 38304000

約数和(自身を除く): 17629492

約数列:

[1, 2, 4, 19, 38, 76, 199, 398, 796, 1367, 2734, 3781, 5468, 7562, 15124, 25973, 51946, 103892, 272033, 544066, 1088132, 5168627, 10337254, 20674508]

約数ペア:

[(1, 20674508), (2, 10337254), (4, 5168627), (19, 1088132), (38, 544066), (76, 272033), (199, 103892), (398, 51946), (796, 25973), (1367, 15124), (2734, 7562), (3781, 5468)]