20585439

素因数分解:

$3^2\times 7^2\times {\mathrm{46679}}^1$

素因数の和:46699

約数の個数: 18

約数和(自身を含む): 34589880

約数和(自身を除く): 14004441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 46679, 140037, 326753, 420111, 980259, 2287271, 2940777, 6861813, 20585439]

約数ペア:

[(1, 20585439), (3, 6861813), (7, 2940777), (9, 2287271), (21, 980259), (49, 420111), (63, 326753), (147, 140037), (441, 46679)]