20178580023

素因数分解:

$3^2\times 7^1\times {\mathrm{320294921}}^1$

素因数の和:320294934

約数の個数: 12

約数和(自身を含む): 33310671888

約数和(自身を除く): 13132091865

約数列:

[1, 3, 7, 9, 21, 63, 320294921, 960884763, 2242064447, 2882654289, 6726193341, 20178580023]

約数ペア:

[(1, 20178580023), (3, 6726193341), (7, 2882654289), (9, 2242064447), (21, 960884763), (63, 320294921)]