28507787

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16097}}^1$

素因数の和:16138

約数の個数: 16

約数和(自身を含む): 37089792

約数和(自身を除く): 8582005

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 16097, 112679, 177067, 370231, 1239469, 2591617, 4072541, 28507787]

約数ペア:

[(1, 28507787), (7, 4072541), (11, 2591617), (23, 1239469), (77, 370231), (161, 177067), (253, 112679), (1771, 16097)]