20769885

素因数分解:

$3^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1123}}^1$

素因数の和:1274

約数の個数: 32

約数和(自身を含む): 37226880

約数和(自身を除く): 16456995

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 137, 411, 685, 1123, 1233, 2055, 3369, 3699, 5615, 6165, 10107, 16845, 18495, 30321, 50535, 151605, 153851, 461553, 769255, 1384659, 2307765, 4153977, 6923295, 20769885]

約数ペア:

[(1, 20769885), (3, 6923295), (5, 4153977), (9, 2307765), (15, 1384659), (27, 769255), (45, 461553), (135, 153851), (137, 151605), (411, 50535), (685, 30321), (1123, 18495), (1233, 16845), (2055, 10107), (3369, 6165), (3699, 5615)]