20847255

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9719}}^1$

素因数の和:9751

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18343785

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145, 9719, 29157, 48595, 106909, 126347, 145785, 320727, 379041, 534545, 631735, 1389817, 1603635, 1895205, 4169451, 6949085, 20847255]

約数ペア:

[(1, 20847255), (3, 6949085), (5, 4169451), (11, 1895205), (13, 1603635), (15, 1389817), (33, 631735), (39, 534545), (55, 379041), (65, 320727), (143, 145785), (165, 126347), (195, 106909), (429, 48595), (715, 29157), (2145, 9719)]