16567821

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{1493}}^1$

素因数の和:1642

約数の個数: 20

約数和(自身を含む): 24946812

約数和(自身を除く): 8378991

約数列:

[1, 3, 9, 27, 81, 137, 411, 1233, 1493, 3699, 4479, 11097, 13437, 40311, 120933, 204541, 613623, 1840869, 5522607, 16567821]

約数ペア:

[(1, 16567821), (3, 5522607), (9, 1840869), (27, 613623), (81, 204541), (137, 120933), (411, 40311), (1233, 13437), (1493, 11097), (3699, 4479)]