27997805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{16421}}^1$

素因数の和:16468

約数の個数: 16

約数和(自身を含む): 37836288

約数和(自身を除く): 9838483

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 16421, 82105, 180631, 509051, 903155, 2545255, 5599561, 27997805]

約数ペア:

[(1, 27997805), (5, 5599561), (11, 2545255), (31, 903155), (55, 509051), (155, 180631), (341, 82105), (1705, 16421)]