20369283

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{571}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 31629312

約数和(自身を除く): 11260029

約数列:

[1, 3, 11, 23, 33, 47, 69, 141, 253, 517, 571, 759, 1081, 1551, 1713, 3243, 6281, 11891, 13133, 18843, 26837, 35673, 39399, 80511, 144463, 295207, 433389, 617251, 885621, 1851753, 6789761, 20369283]

約数ペア:

[(1, 20369283), (3, 6789761), (11, 1851753), (23, 885621), (33, 617251), (47, 433389), (69, 295207), (141, 144463), (253, 80511), (517, 39399), (571, 35673), (759, 26837), (1081, 18843), (1551, 13133), (1713, 11891), (3243, 6281)]