20645265

素因数分解:

$3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{5711}}^1$

素因数の和:5960

約数の個数: 16

約数和(自身を含む): 33175296

約数和(自身を除く): 12530031

約数列:

[1, 3, 5, 15, 241, 723, 1205, 3615, 5711, 17133, 28555, 85665, 1376351, 4129053, 6881755, 20645265]

約数ペア:

[(1, 20645265), (3, 6881755), (5, 4129053), (15, 1376351), (241, 85665), (723, 28555), (1205, 17133), (3615, 5711)]