138215889

素因数分解:

$3^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{5669}}^1$

素因数の和:5731

約数の個数: 40

約数和(自身を含む): 241496640

約数和(自身を除く): 103280751

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 81, 129, 189, 301, 387, 567, 903, 1161, 2709, 3483, 5669, 8127, 17007, 24381, 39683, 51021, 119049, 153063, 243767, 357147, 459189, 731301, 1071441, 1706369, 2193903, 3214323, 5119107, 6581709, 15357321, 19745127, 46071963, 138215889]

約数ペア:

[(1, 138215889), (3, 46071963), (7, 19745127), (9, 15357321), (21, 6581709), (27, 5119107), (43, 3214323), (63, 2193903), (81, 1706369), (129, 1071441), (189, 731301), (301, 459189), (387, 357147), (567, 243767), (903, 153063), (1161, 119049), (2709, 51021), (3483, 39683), (5669, 24381), (8127, 17007)]