2172345

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1217}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 4209408

約数和(自身を除く): 2037063

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1217, 1785, 3651, 6085, 8519, 18255, 20689, 25557, 42595, 62067, 103445, 127785, 144823, 310335, 434469, 724115, 2172345]

約数ペア:

[(1, 2172345), (3, 724115), (5, 434469), (7, 310335), (15, 144823), (17, 127785), (21, 103445), (35, 62067), (51, 42595), (85, 25557), (105, 20689), (119, 18255), (255, 8519), (357, 6085), (595, 3651), (1217, 1785)]