7224021

素因数分解:

$3^2\times 7^2\times {\mathrm{16381}}^1$

素因数の和:16401

約数の個数: 18

約数和(自身を含む): 12139062

約数和(自身を除く): 4915041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 16381, 49143, 114667, 147429, 344001, 802669, 1032003, 2408007, 7224021]

約数ペア:

[(1, 7224021), (3, 2408007), (7, 1032003), (9, 802669), (21, 344001), (49, 147429), (63, 114667), (147, 49143), (441, 16381)]