20965341

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{3571}}^1$

素因数の和:3696

約数の個数: 16

約数和(自身を含む): 29719040

約数和(自身を除く): 8753699

約数列:

[1, 3, 19, 57, 103, 309, 1957, 3571, 5871, 10713, 67849, 203547, 367813, 1103439, 6988447, 20965341]

約数ペア:

[(1, 20965341), (3, 6988447), (19, 1103439), (57, 367813), (103, 203547), (309, 67849), (1957, 10713), (3571, 5871)]