1389723723

素因数分解:

$3^4\times {\mathrm{1567}}^1\times {\mathrm{10949}}^1$

素因数の和:12528

約数の個数: 20

約数和(自身を含む): 2077521600

約数和(自身を除く): 687797877

約数列:

[1, 3, 9, 27, 81, 1567, 4701, 10949, 14103, 32847, 42309, 98541, 126927, 295623, 886869, 17157083, 51471249, 154413747, 463241241, 1389723723]

約数ペア:

[(1, 1389723723), (3, 463241241), (9, 154413747), (27, 51471249), (81, 17157083), (1567, 886869), (4701, 295623), (10949, 126927), (14103, 98541), (32847, 42309)]