27878921

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{4027}}^1$

素因数の和:4100

約数の個数: 16

約数和(自身を含む): 34028544

約数和(自身を除く): 6149623

約数列:

[1, 7, 23, 43, 161, 301, 989, 4027, 6923, 28189, 92621, 173161, 648347, 1212127, 3982703, 27878921]

約数ペア:

[(1, 27878921), (7, 3982703), (23, 1212127), (43, 648347), (161, 173161), (301, 92621), (989, 28189), (4027, 6923)]