18832581

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{5407}}^1$

素因数の和:5462

約数の個数: 20

約数和(自身を含む): 28792192

約数和(自身を除く): 9959611

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 5407, 16221, 48663, 145989, 232501, 437967, 697503, 2092509, 6277527, 18832581]

約数ペア:

[(1, 18832581), (3, 6277527), (9, 2092509), (27, 697503), (43, 437967), (81, 232501), (129, 145989), (387, 48663), (1161, 16221), (3483, 5407)]