27742905

素因数分解:

$3^4\times 5^1\times {\mathrm{68501}}^1$

素因数の和:68518

約数の個数: 20

約数和(自身を含む): 49732452

約数和(自身を除く): 21989547

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 68501, 205503, 342505, 616509, 1027515, 1849527, 3082545, 5548581, 9247635, 27742905]

約数ペア:

[(1, 27742905), (3, 9247635), (5, 5548581), (9, 3082545), (15, 1849527), (27, 1027515), (45, 616509), (81, 342505), (135, 205503), (405, 68501)]