405342021

素因数分解:

$3^1\times 7^1\times {\mathrm{2143}}^1\times {\mathrm{9007}}^1$

素因数の和:11160

約数の個数: 16

約数和(自身を含む): 618020864

約数和(自身を除く): 212678843

約数列:

[1, 3, 7, 21, 2143, 6429, 9007, 15001, 27021, 45003, 63049, 189147, 19302001, 57906003, 135114007, 405342021]

約数ペア:

[(1, 405342021), (3, 135114007), (7, 57906003), (21, 19302001), (2143, 189147), (6429, 63049), (9007, 45003), (15001, 27021)]