19770651

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{409}}^1$

素因数の和:587

約数の個数: 24

約数和(自身を含む): 29549520

約数和(自身を除く): 9778869

約数列:

[1, 3, 9, 41, 123, 131, 369, 393, 409, 1179, 1227, 3681, 5371, 16113, 16769, 48339, 50307, 53579, 150921, 160737, 482211, 2196739, 6590217, 19770651]

約数ペア:

[(1, 19770651), (3, 6590217), (9, 2196739), (41, 482211), (123, 160737), (131, 150921), (369, 53579), (393, 50307), (409, 48339), (1179, 16769), (1227, 16113), (3681, 5371)]