28090153

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{13421}}^1$

素因数の和:13464

約数の個数: 16

約数和(自身を含む): 36078336

約数和(自身を除く): 7988183

約数列:

[1, 7, 13, 23, 91, 161, 299, 2093, 13421, 93947, 174473, 308683, 1221311, 2160781, 4012879, 28090153]

約数ペア:

[(1, 28090153), (7, 4012879), (13, 2160781), (23, 1221311), (91, 308683), (161, 174473), (299, 93947), (2093, 13421)]