28713951

素因数分解:

$3^2\times 7^2\times {\mathrm{65111}}^1$

素因数の和:65131

約数の個数: 18

約数和(自身を含む): 48247992

約数和(自身を除く): 19534041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 65111, 195333, 455777, 585999, 1367331, 3190439, 4101993, 9571317, 28713951]

約数ペア:

[(1, 28713951), (3, 9571317), (7, 4101993), (9, 3190439), (21, 1367331), (49, 585999), (63, 455777), (147, 195333), (441, 65111)]