28392021

素因数分解:

$3^2\times 7^2\times {\mathrm{64381}}^1$

素因数の和:64401

約数の個数: 18

約数和(自身を含む): 47707062

約数和(自身を除く): 19315041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 64381, 193143, 450667, 579429, 1352001, 3154669, 4056003, 9464007, 28392021]

約数ペア:

[(1, 28392021), (3, 9464007), (7, 4056003), (9, 3154669), (21, 1352001), (49, 579429), (63, 450667), (147, 193143), (441, 64381)]