3972087

素因数分解:

$3^2\times 7^2\times {\mathrm{9007}}^1$

素因数の和:9027

約数の個数: 18

約数和(自身を含む): 6674928

約数和(自身を除く): 2702841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 9007, 27021, 63049, 81063, 189147, 441343, 567441, 1324029, 3972087]

約数ペア:

[(1, 3972087), (3, 1324029), (7, 567441), (9, 441343), (21, 189147), (49, 81063), (63, 63049), (147, 27021), (441, 9007)]