51687639

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{13577}}^1$

素因数の和:13636

約数の個数: 20

約数和(自身を含む): 78861024

約数和(自身を除く): 27173385

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 13577, 40731, 122193, 366579, 638119, 1099737, 1914357, 5743071, 17229213, 51687639]

約数ペア:

[(1, 51687639), (3, 17229213), (9, 5743071), (27, 1914357), (47, 1099737), (81, 638119), (141, 366579), (423, 122193), (1269, 40731), (3807, 13577)]