207916947

素因数分解:

$3^2\times 7^2\times {\mathrm{471467}}^1$

素因数の和:471487

約数の個数: 18

約数和(自身を含む): 349357788

約数和(自身を除く): 141440841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 471467, 1414401, 3300269, 4243203, 9900807, 23101883, 29702421, 69305649, 207916947]

約数ペア:

[(1, 207916947), (3, 69305649), (7, 29702421), (9, 23101883), (21, 9900807), (49, 4243203), (63, 3300269), (147, 1414401), (441, 471467)]