20848795

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 29237760

約数和(自身を除く): 8388965

約数列:

[1, 5, 11, 19, 55, 71, 95, 209, 281, 355, 781, 1045, 1349, 1405, 3091, 3905, 5339, 6745, 14839, 15455, 19951, 26695, 58729, 74195, 99755, 219461, 293645, 379069, 1097305, 1895345, 4169759, 20848795]

約数ペア:

[(1, 20848795), (5, 4169759), (11, 1895345), (19, 1097305), (55, 379069), (71, 293645), (95, 219461), (209, 99755), (281, 74195), (355, 58729), (781, 26695), (1045, 19951), (1349, 15455), (1405, 14839), (3091, 6745), (3905, 5339)]