19902484

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{103}}^2$

素因数の和:284

約数の個数: 36

約数和(自身を含む): 40795104

約数和(自身を除く): 20892620

約数列:

[1, 2, 4, 7, 14, 28, 67, 103, 134, 206, 268, 412, 469, 721, 938, 1442, 1876, 2884, 6901, 10609, 13802, 21218, 27604, 42436, 48307, 74263, 96614, 148526, 193228, 297052, 710803, 1421606, 2843212, 4975621, 9951242, 19902484]

約数ペア:

[(1, 19902484), (2, 9951242), (4, 4975621), (7, 2843212), (14, 1421606), (28, 710803), (67, 297052), (103, 193228), (134, 148526), (206, 96614), (268, 74263), (412, 48307), (469, 42436), (721, 27604), (938, 21218), (1442, 13802), (1876, 10609), (2884, 6901)]