16956009

素因数分解:

$3^2\times 7^2\times {\mathrm{38449}}^1$

素因数の和:38469

約数の個数: 18

約数和(自身を含む): 28491450

約数和(自身を除く): 11535441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 38449, 115347, 269143, 346041, 807429, 1884001, 2422287, 5652003, 16956009]

約数ペア:

[(1, 16956009), (3, 5652003), (7, 2422287), (9, 1884001), (21, 807429), (49, 346041), (63, 269143), (147, 115347), (441, 38449)]