20998436

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1153}}^1$

素因数の和:1343

約数の個数: 24

約数和(自身を含む): 38289720

約数和(自身を除く): 17291284

約数列:

[1, 2, 4, 29, 58, 116, 157, 314, 628, 1153, 2306, 4553, 4612, 9106, 18212, 33437, 66874, 133748, 181021, 362042, 724084, 5249609, 10499218, 20998436]

約数ペア:

[(1, 20998436), (2, 10499218), (4, 5249609), (29, 724084), (58, 362042), (116, 181021), (157, 133748), (314, 66874), (628, 33437), (1153, 18212), (2306, 9106), (4553, 4612)]